diff --git a/extensions/feishu/src/policy.test.ts b/extensions/feishu/src/policy.test.ts
index ec5f4430ebe..01530e12cba 100644
--- a/extensions/feishu/src/policy.test.ts
+++ b/extensions/feishu/src/policy.test.ts
@@ -163,6 +163,17 @@ describe("feishu policy", () => {
       ).toEqual({ requireMention: true });
     });
 
+    it("requireMentionInThread tightens when base requireMention is false", () => {
+      expect(
+        resolveFeishuReplyPolicy({
+          isDirectMessage: false,
+          isThreadReply: true,
+          globalConfig: { requireMention: false } as FeishuConfig,
+          groupConfig: { requireMentionInThread: true } as FeishuGroupConfig,
+        }),
+      ).toEqual({ requireMention: true });
+    });
+
     it("does not apply thread override for non-thread messages", () => {
       expect(
         resolveFeishuReplyPolicy({
diff --git a/extensions/feishu/src/policy.ts b/extensions/feishu/src/policy.ts
index 7a08dfa1877..1db6e6618c6 100644
--- a/extensions/feishu/src/policy.ts
+++ b/extensions/feishu/src/policy.ts
@@ -116,7 +116,7 @@ export function resolveFeishuReplyPolicy(params: {
   const requireMention =
     params.groupConfig?.requireMention ?? params.globalConfig?.requireMention ?? true;
 
-  if (requireMention && params.isThreadReply) {
+  if (params.isThreadReply) {
     const threadOverride =
       params.groupConfig?.requireMentionInThread ?? params.globalConfig?.requireMentionInThread;
     if (threadOverride !== undefined) {