diff --git a/wwwroot/knowledge_bases_list/create_kb.dspy b/wwwroot/knowledge_bases_list/create_kb.dspy
index 8dd90f1..8f18909 100644
--- a/wwwroot/knowledge_bases_list/create_kb.dspy
+++ b/wwwroot/knowledge_bases_list/create_kb.dspy
@@ -8,11 +8,9 @@ async with db.sqlorContext(dbname) as sor:
     kb_id = uuid.uuid4().hex[:12]
     name = ns.get("name", "")
     desc = ns.get("description", "")
-    engine = ns.get("embedding_engine", "CLIP ViT-H-14")
-    vdb = ns.get("vdb_collection", name)
     await sor.sqlExe(
         "INSERT INTO knowledge_bases (id, name, description, org_id, embedding_engine, vdb_collection, doc_count, total_size, chunk_count, status, created_at) "
-        "VALUES (${id}$, ${name}$, ${desc}$, ${org_id}$, ${engine}$, ${vdb}$, 0, 0, 0, 'active', NOW())",
-        {"id": kb_id, "name": name, "desc": desc, "org_id": userorgid, "engine": engine, "vdb": vdb})
+        "VALUES (${id}$, ${name}$, ${desc}$, ${org_id}$, 'CLIP ViT-H-14', 'rag_collection', 0, 0, 0, 'active', NOW())",
+        {"id": kb_id, "name": name, "desc": desc, "org_id": userorgid})
     return {"status": "SUCCEEDED", "kb_id": kb_id}
 return {"error": "failed"}
diff --git a/wwwroot/knowledge_bases_list/new_kb_form.ui b/wwwroot/knowledge_bases_list/new_kb_form.ui
index c4778e0..21c4bb7 100644
--- a/wwwroot/knowledge_bases_list/new_kb_form.ui
+++ b/wwwroot/knowledge_bases_list/new_kb_form.ui
@@ -8,9 +8,7 @@
             "options": {
                 "fields": [
                     {"name": "name", "title": "名称", "type": "str", "uitype": "str", "required": true},
-                    {"name": "description", "title": "描述", "type": "text", "uitype": "text"},
-                    {"name": "embedding_engine", "title": "向量引擎", "type": "str", "uitype": "str", "default": "CLIP ViT-H-14"},
-                    {"name": "vdb_collection", "title": "向量集合名", "type": "str", "uitype": "str"}
+                    {"name": "description", "title": "描述", "type": "text", "uitype": "text"}
                 ]
             }
         },