diff --git a/pkg/cloudcommon/db/db_dispatcher.go b/pkg/cloudcommon/db/db_dispatcher.go
index 1b1db543a9..9ea9967088 100644
--- a/pkg/cloudcommon/db/db_dispatcher.go
+++ b/pkg/cloudcommon/db/db_dispatcher.go
@@ -342,6 +342,12 @@ func query2List(manager IModelManager, ctx context.Context, userCred mcclient.To
 			}
 			jsonDict = getModelExtraDetails(item, ctx, jsonDict)
 		}
+		if query.Contains("export_keys") {
+			exportDict := item.GetExportItems(ctx, userCred, query)
+			if exportDict != nil {
+				jsonDict.Update(exportDict)
+			}
+		}
 		results = append(results, jsonDict)
 	}
 	return results, nil
diff --git a/pkg/cloudcommon/db/interface.go b/pkg/cloudcommon/db/interface.go
index d046ac6e26..0f21d9592f 100644
--- a/pkg/cloudcommon/db/interface.go
+++ b/pkg/cloudcommon/db/interface.go
@@ -78,6 +78,7 @@ type IModel interface {
 	// get hooks
 	AllowGetDetails(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) bool
 	GetExtraDetails(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) *jsonutils.JSONDict
+	GetExportItems(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) *jsonutils.JSONDict
 
 	// create hooks
 	CustomizeCreate(ctx context.Context, userCred mcclient.TokenCredential, ownerProjId string, query jsonutils.JSONObject, data jsonutils.JSONObject) error
diff --git a/pkg/cloudcommon/db/modelbase.go b/pkg/cloudcommon/db/modelbase.go
index 20c1e4544e..5182e42470 100644
--- a/pkg/cloudcommon/db/modelbase.go
+++ b/pkg/cloudcommon/db/modelbase.go
@@ -193,6 +193,10 @@ func (model *SModelBase) GetCustomizeColumns(ctx context.Context, userCred mccli
 	return jsonutils.NewDict()
 }
 
+func (model *SModelBase) GetExportItems(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) *jsonutils.JSONDict {
+	return jsonutils.NewDict()
+}
+
 // get hooks
 func (model *SModelBase) AllowGetDetails(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) bool {
 	return false
diff --git a/pkg/compute/models/guests.go b/pkg/compute/models/guests.go
index 66292bc030..48edef72f5 100644
--- a/pkg/compute/models/guests.go
+++ b/pkg/compute/models/guests.go
@@ -1123,6 +1123,20 @@ func (self *SGuest) GetExtraDetails(ctx context.Context, userCred mcclient.Token
 	return self.moreExtraInfo(extra)
 }
 
+func (self *SGuest) GetExportItems(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) *jsonutils.JSONDict {
+	exportKeys, _ := query.GetString("export_keys")
+	keys := strings.Split(exportKeys, ",")
+	res := jsonutils.NewDict()
+	if utils.IsInStringArray("os_distribution", keys) {
+		osType := self.GetMetadata("os_distribution", userCred)
+		if len(osType) == 0 {
+			osType = self.OsType
+		}
+		res.Set("os_distribution", jsonutils.NewString(osType))
+	}
+	return res
+}
+
 func (self *SGuest) getNetworksDetails() string {
 	var buf bytes.Buffer
 	for _, nic := range self.GetNetworks() {