diff --git a/server/cmd/reearth-cms/main.go b/server/cmd/reearth-cms/main.go
index a351581f5..385be8308 100644
--- a/server/cmd/reearth-cms/main.go
+++ b/server/cmd/reearth-cms/main.go
@@ -118,6 +118,8 @@ func main() {
 			log.Fatalf("asset not found: %v", err)
 		}
 
+		log.Infof("importing items from asset %s", aId.String())
+
 		items, fields, err := itemsFromJson(frc, *format == "geojson", geometryFieldKey, *sp)
 		if err != nil {
 			log.Fatalf("failed to parse json: %v", err)
@@ -164,7 +166,7 @@ func itemsFromJson(r io.Reader, isGeoJson bool, geoField *string, sp schema.Pack
 
 	items := make([]interfaces.ImportItemParam, 0)
 	fields := make([]interfaces.CreateFieldParam, 0)
-	for _, o := range jsonObjects {
+	for i, o := range jsonObjects {
 		var iId *id.ItemID
 		//idStr, _ := o["id"].(string)
 		//iId = id.ItemIDFromRef(&idStr)
@@ -251,7 +253,12 @@ func itemsFromJson(r io.Reader, isGeoJson bool, geoField *string, sp schema.Pack
 			})
 		}
 		items = append(items, item)
+		if i > 0 && i%1000 == 0 {
+			log.Infof("%d items prepared...", i)
+		}
 	}
+	log.Infof("%d items prepared.", len(items))
+	log.Infof("items preparation done.")
 	return items, fields, nil
 }
 
diff --git a/server/internal/usecase/interactor/item.go b/server/internal/usecase/interactor/item.go
index 54f41e860..f72561778 100644
--- a/server/internal/usecase/interactor/item.go
+++ b/server/internal/usecase/interactor/item.go
@@ -445,11 +445,12 @@ func (i Item) Import(ctx context.Context, param interfaces.ImportItemsParam, ope
 		if err != nil {
 			return interfaces.ImportItemsResponse{}, err
 		}
+		log.Infof("schema %s updated, %v new field created.", s.ID(), len(param.Fields))
 	}
 
 	f := func(ctx context.Context) (interfaces.ImportItemsResponse, error) {
 
-		for _, itemParam := range param.Items {
+		for j, itemParam := range param.Items {
 
 			var oldItem *item.Item
 			if itemParam.ItemId != nil {
@@ -586,15 +587,22 @@ func (i Item) Import(ctx context.Context, param interfaces.ImportItemsParam, ope
 			} else {
 				res.ItemUpdated()
 			}
+
+			if j > 0 && j%1000 == 0 {
+				log.Infof(" %d items created...", j)
+			}
 		}
+		log.Infof(" %d items created.", len(param.Items))
 
 		if err := i.repos.Thread.SaveAll(ctx, threadsToSave); err != nil {
 			return interfaces.ImportItemsResponse{}, err
 		}
+		log.Infof(" %d threads saved.", len(threadsToSave))
 
 		if err := i.repos.Item.SaveAll(ctx, itemsToSave); err != nil {
 			return interfaces.ImportItemsResponse{}, err
 		}
+		log.Infof(" %d items saved.", len(itemsToSave))
 
 		return res.Into(), nil
 	}
@@ -675,7 +683,7 @@ func (i Item) Import2(ctx context.Context, aId id.AssetID, mId id.ModelID, forma
 	}
 
 	if err := i.gateways.TaskRunner.Run(ctx, taskPayload.Payload()); err != nil {
-		return fmt.Errorf("failed to trigger copy event: %w", err)
+		return fmt.Errorf("failed to trigger import event: %w", err)
 	}
 
 	log.Info("item: successfully triggered import event")