diff --git a/apps/application/serializers/common.py b/apps/application/serializers/common.py
index b41ce79e470..2773c8fd7f6 100644
--- a/apps/application/serializers/common.py
+++ b/apps/application/serializers/common.py
@@ -217,6 +217,8 @@ def to_base_pipeline_manage_params(self):
         model_params_setting = None
         if model_id is not None:
             model = QuerySet(Model).filter(id=model_id).first()
+            if model is None:
+                raise Exception(_("Model does not exist"))
             credential = get_model_credential(model.provider, model.model_type, model.model_name)
             model_params_setting = credential.get_model_params_setting_form(model.model_name).get_default_form_data()
         return {