diff --git a/tools/goctl/model/mongo/template/model.tpl b/tools/goctl/model/mongo/template/model.tpl
index c88f1462..c07d7896 100644
--- a/tools/goctl/model/mongo/template/model.tpl
+++ b/tools/goctl/model/mongo/template/model.tpl
@@ -29,7 +29,7 @@ func newDefault{{.Type}}Model(conn {{if .Cache}}*monc.Model{{else}}*mon.Model{{e
 
 
 func (m *default{{.Type}}Model) Insert(ctx context.Context, data *{{.Type}}) error {
-    if !data.ID.IsZero() {
+    if data.ID.IsZero() {
         data.ID = primitive.NewObjectID()
         data.CreateAt = time.Now()
         data.UpdateAt = time.Now()