diff --git a/api/app/core/workflow/nodes/memory/config.py b/api/app/core/workflow/nodes/memory/config.py
index 317dc507..987230c1 100644
--- a/api/app/core/workflow/nodes/memory/config.py
+++ b/api/app/core/workflow/nodes/memory/config.py
@@ -11,7 +11,7 @@ class MemoryReadNodeConfig(BaseNodeConfig):
         ...
     )
 
-    config_id: str = Field(
+    config_id: int = Field(
         ...
     )
 
@@ -26,6 +26,6 @@ class MemoryWriteNodeConfig(BaseNodeConfig):
         ...
     )
 
-    config_id: str = Field(
+    config_id: int = Field(
         ...
     )
diff --git a/api/app/core/workflow/nodes/memory/node.py b/api/app/core/workflow/nodes/memory/node.py
index bb2366f6..0d1b1fb4 100644
--- a/api/app/core/workflow/nodes/memory/node.py
+++ b/api/app/core/workflow/nodes/memory/node.py
@@ -25,7 +25,7 @@ class MemoryReadNode(BaseNode):
             return await MemoryAgentService().read_memory(
                 group_id=end_user_id,
                 message=self._render_template(self.typed_config.message, state),
-                config_id=self.typed_config.config_id,
+                config_id=str(self.typed_config.config_id),
                 search_switch=self.typed_config.search_switch,
                 history=[],
                 db=db,
@@ -52,7 +52,7 @@ class MemoryWriteNode(BaseNode):
             return await MemoryAgentService().write_memory(
                 group_id=end_user_id,
                 message=self._render_template(self.typed_config.message, state),
-                config_id=self.typed_config.config_id,
+                config_id=str(self.typed_config.config_id),
                 db=db,
                 storage_type="neo4j",
                 user_rag_memory_id=""