diff --git a/lightrag_webui/src/components/graph/graphSearchUtils.ts b/lightrag_webui/src/components/graph/graphSearchUtils.ts
index 6f4cd4c9..d715a02d 100644
--- a/lightrag_webui/src/components/graph/graphSearchUtils.ts
+++ b/lightrag_webui/src/components/graph/graphSearchUtils.ts
@@ -11,18 +11,3 @@ export const searchCache: {
   graph: null,
   searchEngine: null
 }
-
-export const updateSearchEngine = (nodeId: string, graph: DirectedGraph) => {
-  if (!searchCache.searchEngine || !graph) return
-
-  const newDocument = {
-    id: nodeId,
-    label: graph.getNodeAttribute(nodeId, 'label')
-  }
-  searchCache.searchEngine.add(newDocument)
-}
-
-export const removeFromSearchEngine = (nodeId: string) => {
-  if (!searchCache.searchEngine) return
-  searchCache.searchEngine.remove({ id: nodeId })
-}
diff --git a/lightrag_webui/src/hooks/useLightragGraph.tsx b/lightrag_webui/src/hooks/useLightragGraph.tsx
index 36cdb5ba..635276b7 100644
--- a/lightrag_webui/src/hooks/useLightragGraph.tsx
+++ b/lightrag_webui/src/hooks/useLightragGraph.tsx
@@ -11,7 +11,7 @@ import { useSettingsStore } from '@/stores/settings'
 import { useTabVisibility } from '@/contexts/useTabVisibility'
 
 import seedrandom from 'seedrandom'
-import { searchCache, updateSearchEngine, removeFromSearchEngine } from '@/components/graph/graphSearchUtils'
+import { searchCache } from '@/components/graph/graphSearchUtils'
 
 const validateGraph = (graph: RawGraph) => {
   if (!graph) {
@@ -538,8 +538,6 @@ const useLightrangeGraph = () => {
             rawGraph.nodes.push(newNode);
             // Update nodeIdMap
             rawGraph.nodeIdMap[nodeId] = rawGraph.nodes.length - 1;
-            // Update search engine with new node
-            updateSearchEngine(nodeId, sigmaGraph);
           }
         }
 
@@ -707,8 +705,6 @@ const useLightrangeGraph = () => {
 
             // Remove from nodeIdMap
             delete rawGraph.nodeIdMap[nodeToDelete];
-            // Remove from search engine
-            removeFromSearchEngine(nodeToDelete);
           }
         }