diff --git a/blocksuite/affine/shared/src/services/feature-flag-service.ts b/blocksuite/affine/shared/src/services/feature-flag-service.ts
index 5bbd6837fc..bdbf5c55b8 100644
--- a/blocksuite/affine/shared/src/services/feature-flag-service.ts
+++ b/blocksuite/affine/shared/src/services/feature-flag-service.ts
@@ -21,7 +21,6 @@ export interface BlockSuiteFlags {
   enable_table_virtual_scroll: boolean;
   enable_turbo_renderer: boolean;
   enable_dom_renderer: boolean;
-  enable_comment: boolean;
 }
 
 export class FeatureFlagService extends StoreExtension {
@@ -47,7 +46,6 @@ export class FeatureFlagService extends StoreExtension {
     enable_table_virtual_scroll: false,
     enable_turbo_renderer: false,
     enable_dom_renderer: false,
-    enable_comment: false,
   });
 
   setFlag(key: keyof BlockSuiteFlags, value: boolean) {
diff --git a/packages/frontend/core/src/blocksuite/block-suite-editor/lit-adaper.tsx b/packages/frontend/core/src/blocksuite/block-suite-editor/lit-adaper.tsx
index eb2f5c6d56..dbea49d357 100644
--- a/packages/frontend/core/src/blocksuite/block-suite-editor/lit-adaper.tsx
+++ b/packages/frontend/core/src/blocksuite/block-suite-editor/lit-adaper.tsx
@@ -85,10 +85,8 @@ const usePatchSpecs = (mode: DocMode) => {
   const serverService = useService(ServerService);
   const serverConfig = useLiveData(serverService.server.config$);
 
-  const enableComment =
-    useLiveData(featureFlagService.flags.enable_comment.$) &&
-    // comment may not be supported by the server
-    serverConfig.features.includes(ServerFeature.Comment);
+  // comment may not be supported by the server
+  const enableComment = serverConfig.features.includes(ServerFeature.Comment);
 
   const patchedSpecs = useMemo(() => {
     const manager = getViewManager()
diff --git a/packages/frontend/core/src/desktop/pages/workspace/detail-page/detail-page.tsx b/packages/frontend/core/src/desktop/pages/workspace/detail-page/detail-page.tsx
index 3206fe6817..c7b8bdba9a 100644
--- a/packages/frontend/core/src/desktop/pages/workspace/detail-page/detail-page.tsx
+++ b/packages/frontend/core/src/desktop/pages/workspace/detail-page/detail-page.tsx
@@ -118,10 +118,8 @@ const DetailPageImpl = memo(function DetailPageImpl() {
   const serverService = useService(ServerService);
   const serverConfig = useLiveData(serverService.server.config$);
 
-  const enableComment =
-    useLiveData(featureFlagService.flags.enable_comment.$) &&
-    // comment may not be supported by the server
-    serverConfig.features.includes(ServerFeature.Comment);
+  // comment may not be supported by the server
+  const enableComment = serverConfig.features.includes(ServerFeature.Comment);
 
   useEffect(() => {
     if (isActiveView) {
diff --git a/packages/frontend/core/src/modules/feature-flag/constant.ts b/packages/frontend/core/src/modules/feature-flag/constant.ts
index 3df3ad72df..0efa9c8736 100644
--- a/packages/frontend/core/src/modules/feature-flag/constant.ts
+++ b/packages/frontend/core/src/modules/feature-flag/constant.ts
@@ -264,14 +264,6 @@ export const AFFINE_FLAGS = {
     configurable: isCanaryBuild,
     defaultState: false,
   },
-  enable_comment: {
-    category: 'blocksuite',
-    bsFlag: 'enable_comment',
-    displayName: 'Enable Comment',
-    description: 'Enable comment',
-    configurable: true,
-    defaultState: isCanaryBuild,
-  },
 } satisfies { [key in string]: FlagInfo };
 
 // oxlint-disable-next-line no-redeclare