diff --git a/plugins/admin/controller/edit.go b/plugins/admin/controller/edit.go
index 825ca8724..bd8a56bba 100644
--- a/plugins/admin/controller/edit.go
+++ b/plugins/admin/controller/edit.go
@@ -163,6 +163,7 @@ func (h *Handler) EditForm(ctx *context.Context) {
 			param.MultiForm.Value[formPanel.FieldList[i].Field] = []string{""}
 		}
 		if formPanel.FieldList[i].FormType == form.File &&
+			len(param.MultiForm.File[formPanel.FieldList[i].Field]) != 0 &&
 			len(param.MultiForm.Value[formPanel.FieldList[i].Field+"__change_flag"]) > 0 &&
 			param.MultiForm.Value[formPanel.FieldList[i].Field+"__change_flag"][0] != "1" {
 			delete(param.MultiForm.Value, formPanel.FieldList[i].Field)