diff --git a/api/services/dataset_service.py b/api/services/dataset_service.py
index 5384228b84..8719eb3be4 100644
--- a/api/services/dataset_service.py
+++ b/api/services/dataset_service.py
@@ -333,6 +333,13 @@ class DatasetService:
             if external_retrieval_model:
                 dataset.retrieval_model = external_retrieval_model
             dataset.name = data.get("name", dataset.name)
+            #  check if dataset name is exists
+            if db.session.query(Dataset).filter(
+                Dataset.id != dataset_id,
+                Dataset.name == dataset.name,
+                Dataset.tenant_id == dataset.tenant_id,
+            ).first():
+                raise ValueError("Dataset name already exists")
             dataset.description = data.get("description", "")
             permission = data.get("permission")
             if permission: