diff --git a/backend/src/main/java/com/imeeting/controller/biz/HotWordController.java b/backend/src/main/java/com/imeeting/controller/biz/HotWordController.java
index 06e605e..1ef643d 100644
--- a/backend/src/main/java/com/imeeting/controller/biz/HotWordController.java
+++ b/backend/src/main/java/com/imeeting/controller/biz/HotWordController.java
@@ -80,6 +80,7 @@ public class HotWordController {
             @RequestParam(defaultValue = "10") Integer size,
             @RequestParam(required = false) String word,
             @RequestParam(required = false) String category,
+            @RequestParam(required = false) Long hotWordGroupId,
             @RequestParam(required = false) Long tenantId) {
         LoginUser loginUser = (LoginUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
         Long targetTenantId = Boolean.TRUE.equals(loginUser.getIsPlatformAdmin()) ? tenantId : null;
@@ -87,6 +88,7 @@ public class HotWordController {
         LambdaQueryWrapper<HotWord> wrapper = new LambdaQueryWrapper<HotWord>()
                 .like(word != null && !word.isEmpty(), HotWord::getWord, word)
                 .eq(category != null && !category.isEmpty(), HotWord::getCategory, category)
+                .eq(hotWordGroupId != null, HotWord::getHotWordGroupId, hotWordGroupId)
                 .orderByDesc(HotWord::getCreatedAt);
         wrapper.eq(targetTenantId != null, HotWord::getTenantId, targetTenantId);
 
diff --git a/frontend/src/api/business/hotword.ts b/frontend/src/api/business/hotword.ts
index 0350148..008c108 100644
--- a/frontend/src/api/business/hotword.ts
+++ b/frontend/src/api/business/hotword.ts
@@ -35,6 +35,7 @@ export const getHotWordPage = (params: {
   size: number;
   word?: string;
   category?: string;
+  hotWordGroupId?: number;
   tenantId?: number;
 }) => {
   return http.get<{ code: string; data: { records: HotWordVO[]; total: number }; msg: string }>(
diff --git a/frontend/src/pages/business/HotWords.tsx b/frontend/src/pages/business/HotWords.tsx
index 9382b17..9c278d0 100644
--- a/frontend/src/pages/business/HotWords.tsx
+++ b/frontend/src/pages/business/HotWords.tsx
@@ -83,6 +83,7 @@ const HotWords: React.FC = () => {
   const [size, setSize] = useState(10);
   const [searchWord, setSearchWord] = useState("");
   const [searchCategory, setSearchCategory] = useState<string | undefined>(undefined);
+  const [searchGroupId, setSearchGroupId] = useState<number | undefined>(undefined);
 
   const [modalVisible, setModalVisible] = useState(false);
   const [editingId, setEditingId] = useState<number | null>(null);
@@ -103,7 +104,7 @@ const HotWords: React.FC = () => {
 
   useEffect(() => {
     void fetchData();
-  }, [current, searchCategory, searchWord, size]);
+  }, [current, searchCategory, searchGroupId, searchWord, size]);
 
   useEffect(() => {
     void loadGroupOptions();
@@ -117,6 +118,7 @@ const HotWords: React.FC = () => {
         size,
         word: searchWord,
         category: searchCategory,
+        hotWordGroupId: searchGroupId,
         tenantId: isPlatformAdmin ? activeTenantId : undefined,
       });
       if (res.data?.data) {
@@ -396,6 +398,16 @@ const HotWords: React.FC = () => {
                 </Option>
               ))}
             </Select>
+            <Select
+              placeholder="按热词组筛选"
+              style={{ width: 180 }}
+              allowClear
+              options={groupOptions.map((item) => ({ label: item.groupName, value: item.id }))}
+              onChange={(value) => {
+                setSearchGroupId(value);
+                setCurrent(1);
+              }}
+            />
             <Input
               placeholder="搜索热词原文"
               prefix={<SearchOutlined />}
diff --git a/frontend/src/pages/business/MeetingDetail.tsx b/frontend/src/pages/business/MeetingDetail.tsx
index 9d70e97..913c042 100644
--- a/frontend/src/pages/business/MeetingDetail.tsx
+++ b/frontend/src/pages/business/MeetingDetail.tsx
@@ -42,7 +42,7 @@ import {
   updateSpeakerInfo,
 } from '../../api/business/meeting';
 import { getAiModelDefault, getAiModelPage, AiModelVO } from '../../api/business/aimodel';
-import { getHotWordPage, saveHotWord } from '../../api/business/hotword';
+import { getHotWordPage, getPinyinSuggestion, saveHotWord } from '../../api/business/hotword';
 import { getPromptPage, PromptTemplateVO } from '../../api/business/prompt';
 import { listUsers } from '../../api';
 import { useDict } from '../../hooks/useDict';
@@ -977,15 +977,24 @@ const MeetingDetail: React.FC = () => {
 
       await Promise.all(
         toCreate.map((word) =>
-          saveHotWord({
-            word,
-            pinyinList: [],
-            matchStrategy: 1,
-            category: '',
-            weight: 2,
-            status: 1,
+          (async () => {
+            let pinyinList: string[] = [];
+            try {
+              const pinyinRes = await getPinyinSuggestion(word);
+              pinyinList = (pinyinRes.data?.data || []).map((item) => item.trim()).filter(Boolean);
+            } catch {
+              pinyinList = [];
+            }
+            return saveHotWord({
+              word,
+              pinyinList,
+              matchStrategy: 1,
+              category: '',
+              weight: 2,
+              status: 1,
             remark: meeting ? `来源于会议：${meeting.title}` : '来源于会议关键词',
-          }),
+            });
+          })(),
         ),
       );