diff --git a/backend/app/engine/engine.py b/backend/app/engine/engine.py
index bde2b9d..138ad53 100644
--- a/backend/app/engine/engine.py
+++ b/backend/app/engine/engine.py
@@ -7,10 +7,26 @@ from llama_index.core.query_engine import RetrieverQueryEngine
 from llama_index.core.response_synthesizers import ResponseMode
 from llama_index.readers.database import DatabaseReader
 from sqlalchemy import create_engine
-
+from util.register import *
 from app.engine.prompt import text_qa_template, refine_template, summary_template, simple_template
 from app.engine.retriever.HybridRetriever import HybridRetriever
-from app.settings import get_node_postprocessors
+
+ModelPlateCategory = '模型平台'
+
+def get_node_postprocessors():
+    rerank_enabled = os.getenv("RERANK_ENABLED").title()
+    if rerank_enabled is None or rerank_enabled == 'False':
+        return []
+    
+    Rerank_provider = os.getenv("RERANK_PROVIDER")
+    modelPaltCls = ClsRegister.get(ModelPlateCategory,Rerank_provider)
+    postprocess = None
+    if modelPaltCls is not None:        
+        modelPalt = modelPaltCls()
+        postprocess =  modelPalt.rerank()
+    else:
+        raise ValueError(f"Invalid rerank provider: {Rerank_provider}")
+    return postprocess
 
 def makeDescriptionByEngine(sql_database:SQLDatabase):
     reader = DatabaseReader(sql_database)
diff --git a/backend/app/settings.py b/backend/app/settings.py
index 57f098c..12e200c 100644
--- a/backend/app/settings.py
+++ b/backend/app/settings.py
@@ -15,21 +15,6 @@ from modelProvide.customDashScope import CustomDashScope
 
 ModelPlateCategory = '模型平台'
 
-def get_node_postprocessors():
-    rerank_enabled = os.getenv("RERANK_ENABLED").title()
-    if rerank_enabled is None or rerank_enabled == 'False':
-        return []
-    
-    Rerank_provider = os.getenv("RERANK_PROVIDER")
-    modelPaltCls:ModelPlatform = ClsRegister.get(ModelPlateCategory,Rerank_provider)
-    postprocess = None
-    if modelPaltCls is not None:        
-        modelPalt:ModelPlatform = modelPaltCls()
-        postprocess =  modelPalt.rerank()
-    else:
-        raise ValueError(f"Invalid rerank provider: {Rerank_provider}")
-    return postprocess
-
 def init_settings():
     model_provider = os.getenv("MODEL_PROVIDER")
     modelPaltCls:ModelPlatform = ClsRegister.get(ModelPlateCategory,model_provider)