diff --git a/cmd/products.gen.go b/cmd/products.gen.go
index ba87a91d01..9c9b58c2a3 100644
--- a/cmd/products.gen.go
+++ b/cmd/products.gen.go
@@ -18,6 +18,7 @@ import (
 	"github.com/ucloud/ucloud-cli/products/sqlserver"
 	"github.com/ucloud/ucloud-cli/products/subnet"
 	"github.com/ucloud/ucloud-cli/products/uclickhouse"
+	"github.com/ucloud/ucloud-cli/products/udac"
 	"github.com/ucloud/ucloud-cli/products/uddos"
 	"github.com/ucloud/ucloud-cli/products/udisk"
 	"github.com/ucloud/ucloud-cli/products/udpn"
@@ -55,6 +56,7 @@ func registeredProducts() []cli.Product {
 		sqlserver.New(),
 		subnet.New(),
 		uclickhouse.New(),
+		udac.New(),
 		uddos.New(),
 		udisk.New(),
 		udpn.New(),
diff --git a/products/udac/internal/udac/cmd.go b/products/udac/internal/udac/cmd.go
new file mode 100644
index 0000000000..ee148284f5
--- /dev/null
+++ b/products/udac/internal/udac/cmd.go
@@ -0,0 +1,23 @@
+package udac
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/ucloud/ucloud-cli/pkg/cli"
+)
+
+// NewCommand builds the `udac` root command and mounts the subcommands.
+func NewCommand(ctx *cli.Context) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "udac",
+		Short: "Manage Database Autonomous Center (UDAC) instances",
+		Long:  "Import, export, and list database instances in the Database Autonomous Center (UDAC).",
+		Args:  cobra.NoArgs,
+	}
+
+	cmd.AddCommand(newImport(ctx))
+	cmd.AddCommand(newExport(ctx))
+	cmd.AddCommand(newList(ctx))
+
+	return cmd
+}
diff --git a/products/udac/internal/udac/export.go b/products/udac/internal/udac/export.go
new file mode 100644
index 0000000000..6179df0de4
--- /dev/null
+++ b/products/udac/internal/udac/export.go
@@ -0,0 +1,204 @@
+package udac
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/ucloud/ucloud-sdk-go/services/uaccount"
+	"github.com/ucloud/ucloud-sdk-go/ucloud/request"
+
+	"github.com/ucloud/ucloud-cli/pkg/cli"
+	"github.com/ucloud/ucloud-cli/pkg/command"
+)
+
+// actionForExportType 根据实例类型返回从 UDAC 移除对应的 Action 名。
+func actionForExportType(instanceType string) (string, error) {
+	switch instanceType {
+	case "mysql":
+		return "RemoveUDACMySQLInstances", nil
+	case "mongodb":
+		return "RemoveUDACUMongoDBClusters", nil
+	default:
+		return "", fmt.Errorf("unsupported instance type: %s, supported: %v", instanceType, SupportedTypes)
+	}
+}
+
+// exportInstances 调用 UDAC 移除 MySQL API，所有实例共用同一个 zone。
+// 走 SDK 默认 FormEncoder（扁平化格式），MySQL 后端接受。
+func exportInstances(ctx *cli.Context, action, projectID, zone string, instanceIDs []string) (map[string]interface{}, error) {
+	instanceInfoSet := make([]interface{}, 0, len(instanceIDs))
+	for _, id := range instanceIDs {
+		instanceInfoSet = append(instanceInfoSet, map[string]interface{}{
+			"ID":   id,
+			"Zone": zone,
+		})
+	}
+
+	params := map[string]interface{}{
+		"Action":          action,
+		"ProjectId":       projectID,
+		"InstanceInfoSet": instanceInfoSet,
+	}
+
+	client := cli.NewServiceClient(ctx, uaccount.NewClient)
+	req := client.NewGenericRequest()
+	if err := req.SetPayload(params); err != nil {
+		return nil, fmt.Errorf("set payload: %w", err)
+	}
+	resp, err := client.GenericInvoke(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.GetPayload(), nil
+}
+
+func exportMongoDBClusters(ctx *cli.Context, action, projectID, region string, clusterIDs []string) (map[string]interface{}, error) {
+	mongoDBClusterSet := make([]interface{}, 0, len(clusterIDs))
+	for _, id := range clusterIDs {
+		mongoDBClusterSet = append(mongoDBClusterSet, map[string]interface{}{
+			"ClusterId": id,
+			"Region":    region,
+		})
+	}
+
+	params := map[string]interface{}{
+		"Action":            action,
+		"ProjectId":         projectID,
+		"Region":            region,
+		"MongoDBClusterSet": mongoDBClusterSet,
+	}
+
+	client := cli.NewServiceClient(ctx, uaccount.NewClient)
+	req := client.NewGenericRequest()
+	if err := req.SetPayload(params); err != nil {
+		return nil, fmt.Errorf("set payload: %w", err)
+	}
+	req.SetEncoder(request.NewJSONEncoder(client.GetConfig(), client.GetCredential()))
+	resp, err := client.GenericInvoke(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.GetPayload(), nil
+}
+
+// newExport implements `ucloud udac export`
+// MySQL 必填：--udb-id, --type=mysql, --zone, --project-id
+// MongoDB 必填：--udb-id, --type=mongodb, --region, --project-id
+// export 是从 UDAC 移除实例（不是导出数据），语义同 import 的反向操作。
+func newExport(ctx *cli.Context) *cobra.Command {
+	var instanceIDs []string
+	var instanceType string
+	var common request.CommonBase
+
+	cmd := &cobra.Command{
+		Use:   "export",
+		Short: "Export database instances from UDAC",
+		Long: `Export existing database instances from the Database Autonomous Center (UDAC).
+
+You must specify the instance type via --type. Supported types: mysql, mongodb.
+
+Required flags:
+  mysql:    --udb-id, --type=mysql, --project-id (--zone falls back to config default)
+  mongodb:  --udb-id, --type=mongodb, --project-id (--region falls back to config default)
+
+--project-id, --region, --zone fall back to config defaults (default-project-id,
+default-region, default-zone).
+
+This is a synchronous operation: the command returns after the export API responds.`,
+		Run: func(c *cobra.Command, args []string) {
+			// 1. 开头单独校验 udb-id 和 type（早失败）
+			if len(instanceIDs) == 0 {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: %s", resourceIDFlag))
+				return
+			}
+			if instanceType == "" {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: type"))
+				return
+			}
+
+			// 2. 类型校验 + Action 选择
+			action, err := actionForExportType(instanceType)
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+
+			// 3. 从 common 取绑定值
+			projectID := common.GetProjectId()
+			region := common.GetRegion()
+			zone := common.GetZone()
+
+			// 4. 类型相关必填校验（配置默认值兜底，空时报错）
+			var missing []string
+			if projectID == "" {
+				missing = append(missing, "project-id")
+			}
+			if instanceType == "mysql" && zone == "" {
+				missing = append(missing, "zone")
+			}
+			if instanceType == "mongodb" && region == "" {
+				missing = append(missing, "region")
+			}
+			if len(missing) > 0 {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: %s", strings.Join(missing, ", ")))
+				return
+			}
+
+			// 5. 归一化 instance ID（支持 "udb-xxx/instance-name" 格式）
+			for i, id := range instanceIDs {
+				instanceIDs[i] = ctx.PickResourceID(id)
+			}
+
+			// 6. 按类型分流调用 API
+			var payload map[string]interface{}
+			if instanceType == "mongodb" {
+				payload, err = exportMongoDBClusters(ctx, action, projectID, region, instanceIDs)
+			} else {
+				payload, err = exportInstances(ctx, action, projectID, zone, instanceIDs)
+			}
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+			if len(payload) == 0 {
+				ctx.HandleError(fmt.Errorf("empty response from server"))
+				return
+			}
+
+			// 7. 输出
+			w := ctx.ProgressWriter()
+			for _, id := range instanceIDs {
+				if instanceType == "mongodb" {
+					fmt.Fprintf(w, "%s[%s] exported successfully (type: %s, region: %s)\n", productName, id, instanceType, region)
+				} else {
+					fmt.Fprintf(w, "%s[%s] exported successfully (type: %s, zone: %s)\n", productName, id, instanceType, zone)
+				}
+			}
+			results := make([]cli.OpResultRow, 0, len(instanceIDs))
+			for _, id := range instanceIDs {
+				results = append(results, cli.OpResultRow{
+					ResourceID: id,
+					Action:     "export",
+					Status:     "Exported",
+				})
+			}
+			ctx.EmitResult(results...)
+		},
+	}
+
+	flags := cmd.Flags()
+	flags.SortFlags = false
+
+	flags.StringSliceVar(&instanceIDs, resourceIDFlag, nil, "Required. Instance ID(s) to export. Repeatable.")
+	flags.StringVar(&instanceType, typeFlag, "", "Required. Instance type: mysql, mongodb.")
+
+	// 公共参数绑定：project-id/region/zone 都用配置默认值兜底
+	ctx.BindRegion(cmd, &common)
+	ctx.BindZone(cmd, &common)
+	ctx.BindProjectID(cmd, &common)
+
+	command.SetFlagValues(cmd, typeFlag, SupportedTypes...)
+
+	return cmd
+}
diff --git a/products/udac/internal/udac/import.go b/products/udac/internal/udac/import.go
new file mode 100644
index 0000000000..4076fa6bef
--- /dev/null
+++ b/products/udac/internal/udac/import.go
@@ -0,0 +1,203 @@
+package udac
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/ucloud/ucloud-sdk-go/services/uaccount"
+	"github.com/ucloud/ucloud-sdk-go/ucloud/request"
+
+	"github.com/ucloud/ucloud-cli/pkg/cli"
+	"github.com/ucloud/ucloud-cli/pkg/command"
+)
+
+// actionForImportType 根据实例类型返回导入对应的 UDAC Action 名。
+func actionForImportType(instanceType string) (string, error) {
+	switch instanceType {
+	case "mysql":
+		return "AddUDACMySQLInstances", nil
+	case "mongodb":
+		return "AddUDACUMongoDBClusters", nil
+	default:
+		return "", fmt.Errorf("unsupported instance type: %s, supported: %v", instanceType, SupportedTypes)
+	}
+}
+
+// importInstances 调用 UDAC 导入 MySQL API，所有实例共用同一个 zone。
+// 走 SDK 默认 FormEncoder（扁平化格式），MySQL 后端接受。
+func importInstances(ctx *cli.Context, action, projectID, zone string, instanceIDs []string) (map[string]interface{}, error) {
+	instanceInfoSet := make([]interface{}, 0, len(instanceIDs))
+	for _, id := range instanceIDs {
+		instanceInfoSet = append(instanceInfoSet, map[string]interface{}{
+			"ID":   id,
+			"Zone": zone,
+		})
+	}
+
+	params := map[string]interface{}{
+		"Action":          action,
+		"ProjectId":       projectID,
+		"InstanceInfoSet": instanceInfoSet,
+	}
+
+	client := cli.NewServiceClient(ctx, uaccount.NewClient)
+	req := client.NewGenericRequest()
+	if err := req.SetPayload(params); err != nil {
+		return nil, fmt.Errorf("set payload: %w", err)
+	}
+	resp, err := client.GenericInvoke(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.GetPayload(), nil
+}
+
+func importMongoDBClusters(ctx *cli.Context, action, projectID, region string, clusterIDs []string) (map[string]interface{}, error) {
+	mongoDBClusterSet := make([]interface{}, 0, len(clusterIDs))
+	for _, id := range clusterIDs {
+		mongoDBClusterSet = append(mongoDBClusterSet, map[string]interface{}{
+			"ClusterId": id,
+			"Region":    region,
+		})
+	}
+
+	params := map[string]interface{}{
+		"Action":            action,
+		"ProjectId":         projectID,
+		"Region":            region,
+		"MongoDBClusterSet": mongoDBClusterSet,
+	}
+
+	client := cli.NewServiceClient(ctx, uaccount.NewClient)
+	req := client.NewGenericRequest()
+	if err := req.SetPayload(params); err != nil {
+		return nil, fmt.Errorf("set payload: %w", err)
+	}
+	req.SetEncoder(request.NewJSONEncoder(client.GetConfig(), client.GetCredential()))
+	resp, err := client.GenericInvoke(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp.GetPayload(), nil
+}
+
+// newImport implements `ucloud udac import`
+// MySQL 必填：--udb-id, --type=mysql, --zone, --project-id
+// MongoDB 必填：--udb-id, --type=mongodb, --region, --project-id
+func newImport(ctx *cli.Context) *cobra.Command {
+	var instanceIDs []string
+	var instanceType string
+	var common request.CommonBase
+
+	cmd := &cobra.Command{
+		Use:   "import",
+		Short: "Import database instances into UDAC",
+		Long: `Import existing database instances into the Database Autonomous Center (UDAC) for autonomous management.
+
+You must specify the instance type via --type. Supported types: mysql, mongodb.
+
+Required flags:
+  mysql:    --udb-id, --type=mysql, --project-id (--zone falls back to config default)
+  mongodb:  --udb-id, --type=mongodb, --project-id (--region falls back to config default)
+
+--project-id, --region, --zone fall back to config defaults (default-project-id,
+default-region, default-zone).
+
+This is a synchronous operation: the command returns after the import API responds.`,
+		Run: func(c *cobra.Command, args []string) {
+			// 1. 开头单独校验 udb-id 和 type（早失败）
+			if len(instanceIDs) == 0 {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: %s", resourceIDFlag))
+				return
+			}
+			if instanceType == "" {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: type"))
+				return
+			}
+
+			// 2. 类型校验 + Action 选择
+			action, err := actionForImportType(instanceType)
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+
+			// 3. 从 common 取绑定值
+			projectID := common.GetProjectId()
+			region := common.GetRegion()
+			zone := common.GetZone()
+
+			// 4. 类型相关必填校验（配置默认值兜底，空时报错）
+			var missing []string
+			if projectID == "" {
+				missing = append(missing, "project-id")
+			}
+			if instanceType == "mysql" && zone == "" {
+				missing = append(missing, "zone")
+			}
+			if instanceType == "mongodb" && region == "" {
+				missing = append(missing, "region")
+			}
+			if len(missing) > 0 {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: %s", strings.Join(missing, ", ")))
+				return
+			}
+
+			// 5. 归一化 instance ID（支持 "udb-xxx/instance-name" 格式）
+			for i, id := range instanceIDs {
+				instanceIDs[i] = ctx.PickResourceID(id)
+			}
+
+			// 6. 按类型分流调用 API
+			var payload map[string]interface{}
+			if instanceType == "mongodb" {
+				payload, err = importMongoDBClusters(ctx, action, projectID, region, instanceIDs)
+			} else {
+				payload, err = importInstances(ctx, action, projectID, zone, instanceIDs)
+			}
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+			if len(payload) == 0 {
+				ctx.HandleError(fmt.Errorf("empty response from server"))
+				return
+			}
+
+			// 7. 输出
+			w := ctx.ProgressWriter()
+			for _, id := range instanceIDs {
+				if instanceType == "mongodb" {
+					fmt.Fprintf(w, "%s[%s] imported successfully (type: %s, region: %s)\n", productName, id, instanceType, region)
+				} else {
+					fmt.Fprintf(w, "%s[%s] imported successfully (type: %s, zone: %s)\n", productName, id, instanceType, zone)
+				}
+			}
+			results := make([]cli.OpResultRow, 0, len(instanceIDs))
+			for _, id := range instanceIDs {
+				results = append(results, cli.OpResultRow{
+					ResourceID: id,
+					Action:     "import",
+					Status:     "Imported",
+				})
+			}
+			ctx.EmitResult(results...)
+		},
+	}
+
+	flags := cmd.Flags()
+	flags.SortFlags = false
+
+	flags.StringSliceVar(&instanceIDs, resourceIDFlag, nil, "Required. Instance ID(s) to import. Repeatable.")
+	flags.StringVar(&instanceType, typeFlag, "", "Required. Instance type: mysql, mongodb.")
+
+	// 公共参数绑定：project-id/region/zone 都用配置默认值兜底
+	ctx.BindRegion(cmd, &common)
+	ctx.BindZone(cmd, &common)
+	ctx.BindProjectID(cmd, &common)
+
+	command.SetFlagValues(cmd, typeFlag, SupportedTypes...)
+
+	return cmd
+}
diff --git a/products/udac/internal/udac/list.go b/products/udac/internal/udac/list.go
new file mode 100644
index 0000000000..1274b8cd49
--- /dev/null
+++ b/products/udac/internal/udac/list.go
@@ -0,0 +1,299 @@
+package udac
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/spf13/cobra"
+	"github.com/ucloud/ucloud-sdk-go/services/uaccount"
+	"github.com/ucloud/ucloud-sdk-go/ucloud/request"
+
+	"github.com/ucloud/ucloud-cli/pkg/cli"
+	"github.com/ucloud/ucloud-cli/pkg/command"
+)
+
+// actionForType 根据实例类型返回对应的 UDAC Action 名。
+func actionForType(instanceType string) (string, error) {
+	switch instanceType {
+	case "mysql":
+		return "ListUDACMySQLInstance", nil
+	case "mongodb":
+		return "ListUDACUMongoDBClusters", nil
+	default:
+		return "", fmt.Errorf("unsupported instance type: %s, supported: %v", instanceType, SupportedTypes)
+	}
+}
+
+// regionFromZone 从 zone 推导 region。
+// UCloud zone 命名规则：{region}-{suffix}，例如 cn-bj2-02 → cn-bj2、hk-02 → hk。
+func regionFromZone(zone string) string {
+	if i := strings.LastIndex(zone, "-"); i > 0 {
+		return zone[:i]
+	}
+	return zone
+}
+
+// newInstanceRow 从 API 返回的 map 构造一行展示数据。
+// overrideRegion 非空时用用户传入值，否则优先读 API 返回的 Region，再兜底从 Zone 推导。
+// MongoDB 响应字段：ClusterId/Name/Region/State/JoinTime（无 Zone）。
+// MySQL 响应字段：ID 或 InstanceId/Name/Zone/State/Status/JoinTime（无 Region）。
+func newInstanceRow(m map[string]interface{}, instanceType, overrideRegion string) (importedInstanceRow, bool) {
+	id := firstString(m, "ClusterId", "InstanceId", "ID")
+	if id == "" {
+		return importedInstanceRow{}, false
+	}
+	zoneVal := getString(m, "Zone")
+	regionVal := getString(m, "Region")
+	if regionVal == "" {
+		regionVal = overrideRegion
+	}
+	if regionVal == "" {
+		regionVal = regionFromZone(zoneVal)
+	}
+	status := firstString(m, "State", "Status")
+	joinTime := getInt64(m, "JoinTime")
+	importTime := ""
+	if joinTime > 0 {
+		importTime = time.Unix(joinTime, 0).Format(time.RFC3339)
+	}
+	return importedInstanceRow{
+		ResourceID: id,
+		InstanceID: id,
+		Name:       getString(m, "Name"),
+		Type:       instanceType,
+		Status:     status,
+		ImportTime: importTime,
+		Region:     regionVal,
+		Zone:       zoneVal,
+	}, true
+}
+
+// firstString 按顺序尝试多个 key，返回第一个非空字符串。
+func firstString(m map[string]interface{}, keys ...string) string {
+	for _, k := range keys {
+		if v := getString(m, k); v != "" {
+			return v
+		}
+	}
+	return ""
+}
+
+// fetchUDACInstances 调用 UDAC list API，返回账号下全部实例。
+func fetchUDACInstances(ctx *cli.Context, action, projectID string) ([]map[string]interface{}, error) {
+	params := map[string]interface{}{
+		"Action":    action,
+		"ProjectId": projectID,
+	}
+
+	client := cli.NewServiceClient(ctx, uaccount.NewClient)
+	req := client.NewGenericRequest()
+	if err := req.SetPayload(params); err != nil {
+		return nil, fmt.Errorf("set payload: %w", err)
+	}
+	resp, err := client.GenericInvoke(req)
+	if err != nil {
+		return nil, err
+	}
+	payload := resp.GetPayload()
+
+	var raw []interface{}
+	for _, key := range []string{"InstanceInfoSet", "Instances", "DataSet"} {
+		if val, ok := payload[key].([]interface{}); ok {
+			raw = val
+			break
+		}
+	}
+	out := make([]map[string]interface{}, 0, len(raw))
+	for _, item := range raw {
+		if m, ok := item.(map[string]interface{}); ok {
+			out = append(out, m)
+		}
+	}
+	return out, nil
+}
+
+// newList implements `ucloud udac list`
+// --project-id 必填（配置默认值兜底）；其他可选。
+func newList(ctx *cli.Context) *cobra.Command {
+	var instanceID, instanceType, statusFilter string
+	var allRegions bool
+	var common request.CommonBase
+
+	cmd := &cobra.Command{
+		Use:   "list",
+		Short: "List imported database instances in UDAC",
+		Long: `List database instances that have been imported into the Database Autonomous Center (UDAC).
+
+Required flag: --project-id (falls back to default-project-id from config if set).
+
+Optional filters:
+  --type         Instance type: mysql, mongodb
+  --region       Filter by region. Defaults to config's default-region.
+  --zone         Filter by zone. If omitted, list across all zones in the region.
+  --udb-id   	 List only the specified instance.
+  --status       Filter by status (e.g., Running, Failed).
+  --all-regions  List instances across all regions (ignore --region and config default).
+
+When both --region and --zone are specified, the zone must belong to the region.`,
+		Run: func(c *cobra.Command, args []string) {
+			// 1. 必填校验：project-id（配置默认值兜底）
+			projectID := common.GetProjectId()
+			if projectID == "" {
+				ctx.HandleError(fmt.Errorf("required flag(s) not set: project-id"))
+				return
+			}
+
+			// 2. 类型校验 + Action 选择
+			action, err := actionForType(instanceType)
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+
+			// 3. 确定 region 过滤值：--all-regions 优先级最高
+			if allRegions && c.Flags().Changed("region") {
+				ctx.HandleError(fmt.Errorf("--all-regions and --region are mutually exclusive"))
+				return
+			}
+			region := common.GetRegion()
+			zone := common.GetZone()
+			if allRegions {
+				region = ""
+			}
+
+			// 4. region/zone 一致性校验
+			if region != "" && zone != "" && !strings.HasPrefix(zone, region+"-") {
+				ctx.HandleError(fmt.Errorf("zone %s does not belong to region %s", zone, region))
+				return
+			}
+
+			// mongodb 响应无 Zone 字段，--zone 过滤会静默清空
+			if instanceType == "mongodb" && zone != "" {
+				ctx.HandleError(fmt.Errorf("--zone is not supported for mongodb, use --region instead"))
+				return
+			}
+
+			// 5. 拉取全部实例（API 只带 ProjectId，不传 Region/Zone）
+			instances, err := fetchUDACInstances(ctx, action, projectID)
+			if err != nil {
+				ctx.HandleError(err)
+				return
+			}
+
+			// 6. 客户端过滤
+			instanceID = ctx.PickResourceID(instanceID)
+			rows := make([]importedInstanceRow, 0, len(instances))
+			for _, m := range instances {
+				if instanceID != "" && firstString(m, "ClusterId", "InstanceId", "ID") != instanceID {
+					continue
+				}
+				zoneVal := getString(m, "Zone")
+				if zone != "" && zoneVal != zone {
+					continue
+				}
+				if region != "" {
+					// 优先用 API 返回的 Region，其次从 Zone 推导
+					instanceRegion := getString(m, "Region")
+					if instanceRegion == "" {
+						instanceRegion = regionFromZone(zoneVal)
+					}
+					if instanceRegion != region {
+						continue
+					}
+				}
+				if statusFilter != "" && firstString(m, "State", "Status") != statusFilter {
+					continue
+				}
+				if row, ok := newInstanceRow(m, instanceType, region); ok {
+					rows = append(rows, row)
+				}
+			}
+
+			// 7. 输出（空列表正常输出空表，不报错）
+			ctx.PrintList(rows)
+		},
+	}
+
+	flags := cmd.Flags()
+	flags.SortFlags = false
+
+	flags.StringVar(&instanceID, resourceIDFlag, "", "Optional. List only the specified instance.")
+	flags.StringVar(&instanceType, typeFlag, "mysql", "Optional. Instance type: mysql, mongodb.")
+	flags.StringVar(&statusFilter, "status", "", "Optional. Filter by status (e.g., Running, Failed).")
+	flags.BoolVar(&allRegions, "all-regions", false, "Optional. List instances across all regions (ignore --region and config default).")
+
+	// 公共参数绑定：region/zone/project-id 都用配置默认值兜底
+	ctx.BindRegion(cmd, &common)
+	ctx.BindZoneEmpty(cmd, &common)
+	ctx.BindProjectID(cmd, &common)
+
+	command.SetFlagValues(cmd, typeFlag, SupportedTypes...)
+	command.SetCompletion(cmd, resourceIDFlag, func() []string {
+		return listImportedInstanceIDs(ctx, instanceType, common.GetRegion(), common.GetZone(), common.GetProjectId())
+	})
+
+	return cmd
+}
+
+func listImportedInstanceIDs(ctx *cli.Context, instanceType, region, zone, projectID string) []string {
+	action, err := actionForType(instanceType)
+	if err != nil {
+		return nil
+	}
+	if instanceType == "mongodb" && zone != "" {
+		return nil
+	}
+	instances, err := fetchUDACInstances(ctx, action, projectID)
+	if err != nil {
+		return nil
+	}
+	out := make([]string, 0, len(instances))
+	for _, m := range instances {
+		zoneVal := getString(m, "Zone")
+		if zone != "" && zoneVal != zone {
+			continue
+		}
+		if region != "" {
+			instanceRegion := getString(m, "Region")
+			if instanceRegion == "" {
+				instanceRegion = regionFromZone(zoneVal)
+			}
+			if instanceRegion != region {
+				continue
+			}
+		}
+		id := firstString(m, "ClusterId", "InstanceId", "ID")
+		if id == "" {
+			continue
+		}
+		if name := getString(m, "Name"); name != "" {
+			out = append(out, id+"/"+name)
+		} else {
+			out = append(out, id)
+		}
+	}
+	return out
+}
+
+// getString 从 map 中安全获取字符串值
+func getString(m map[string]interface{}, key string) string {
+	if val, ok := m[key].(string); ok {
+		return val
+	}
+	return ""
+}
+
+// getInt64 从 map 中安全获取 int64 值（兼容 float64/int64/int）
+func getInt64(m map[string]interface{}, key string) int64 {
+	if val, ok := m[key].(float64); ok {
+		return int64(val)
+	}
+	if val, ok := m[key].(int64); ok {
+		return int64(val)
+	}
+	if val, ok := m[key].(int); ok {
+		return int64(val)
+	}
+	return 0
+}
diff --git a/products/udac/internal/udac/rows.go b/products/udac/internal/udac/rows.go
new file mode 100644
index 0000000000..2c605b76a2
--- /dev/null
+++ b/products/udac/internal/udac/rows.go
@@ -0,0 +1,13 @@
+package udac
+
+// importedInstanceRow is the row format for list output
+type importedInstanceRow struct {
+	ResourceID string `json:"resourceId" header:"ResourceID"`
+	InstanceID string `json:"instanceId" header:"InstanceID"`
+	Name       string `json:"name" header:"Name"`
+	Type       string `json:"type" header:"Type"`
+	Status     string `json:"status" header:"Status"`
+	ImportTime string `json:"importTime" header:"ImportTime"`
+	Region     string `json:"region" header:"Region"`
+	Zone       string `json:"zone" header:"Zone"`
+}
diff --git a/products/udac/internal/udac/status.go b/products/udac/internal/udac/status.go
new file mode 100644
index 0000000000..e2a54d62aa
--- /dev/null
+++ b/products/udac/internal/udac/status.go
@@ -0,0 +1,10 @@
+package udac
+
+const (
+	productName    = "udac"
+	resourceIDFlag = "udb-id" // list 命令的 --udb-id flag
+	typeFlag       = "type"   // 实例类型 flag
+)
+
+// SupportedTypes 支持的实例类型列表
+var SupportedTypes = []string{"mysql", "mongodb"}
diff --git a/products/udac/product.go b/products/udac/product.go
new file mode 100644
index 0000000000..b051f8e869
--- /dev/null
+++ b/products/udac/product.go
@@ -0,0 +1,20 @@
+package udac
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/ucloud/ucloud-cli/pkg/cli"
+	internaludac "github.com/ucloud/ucloud-cli/products/udac/internal/udac"
+)
+
+type product struct{}
+
+func New() cli.Product { return product{} }
+
+func (product) Metadata() cli.Metadata {
+	return cli.Metadata{Name: "udac", Commands: []string{"udac"}}
+}
+
+func (product) NewCommand(ctx *cli.Context) []*cobra.Command {
+	return []*cobra.Command{internaludac.NewCommand(ctx)}
+}
diff --git a/products/udac/product.yaml b/products/udac/product.yaml
new file mode 100644
index 0000000000..874bd471f8
--- /dev/null
+++ b/products/udac/product.yaml
@@ -0,0 +1,6 @@
+name: udac
+owners:
+  - nzr1122
+commands:
+  - udac
+enabled: true
diff --git a/products/udac/testdata/cmdtree.golden b/products/udac/testdata/cmdtree.golden
new file mode 100644
index 0000000000..1b03224684
--- /dev/null
+++ b/products/udac/testdata/cmdtree.golden
@@ -0,0 +1,21 @@
+ucloud udac	use=udac	short=Manage Database Autonomous Center (UDAC) instances
+ucloud udac export	use=export	short=Export database instances from UDAC
+  flag=project-id	short=	default=	required=
+  flag=region	short=	default=	required=
+  flag=type	short=	default=	required=
+  flag=udb-id	short=	default=[]	required=
+  flag=zone	short=	default=	required=
+ucloud udac import	use=import	short=Import database instances into UDAC
+  flag=project-id	short=	default=	required=
+  flag=region	short=	default=	required=
+  flag=type	short=	default=	required=
+  flag=udb-id	short=	default=[]	required=
+  flag=zone	short=	default=	required=
+ucloud udac list	use=list	short=List imported database instances in UDAC
+  flag=all-regions	short=	default=false	required=
+  flag=project-id	short=	default=	required=
+  flag=region	short=	default=	required=
+  flag=status	short=	default=	required=
+  flag=type	short=	default=mysql	required=
+  flag=udb-id	short=	default=	required=
+  flag=zone	short=	default=	required=
diff --git a/products/udac/testdata/completion.golden b/products/udac/testdata/completion.golden
new file mode 100644
index 0000000000..26ee94763f
--- /dev/null
+++ b/products/udac/testdata/completion.golden
@@ -0,0 +1,13 @@
+ucloud udac export	project-id	dynamic
+ucloud udac export	region	dynamic
+ucloud udac export	type	static	mongodb,mysql
+ucloud udac export	zone	dynamic
+ucloud udac import	project-id	dynamic
+ucloud udac import	region	dynamic
+ucloud udac import	type	static	mongodb,mysql
+ucloud udac import	zone	dynamic
+ucloud udac list	project-id	dynamic
+ucloud udac list	region	dynamic
+ucloud udac list	type	static	mongodb,mysql
+ucloud udac list	udb-id	dynamic
+ucloud udac list	zone	dynamic