diff --git a/src/components/JobPortalHeader/index.less b/src/components/JobPortalHeader/index.less
index eb8f8ce..9757b0b 100644
--- a/src/components/JobPortalHeader/index.less
+++ b/src/components/JobPortalHeader/index.less
@@ -245,6 +245,22 @@
             margin: 0 4px;
           }
 
+          .search-input-autocomplete {
+            flex: 1;
+            min-width: 0;
+
+            .ant-select-selector {
+              border: none !important;
+              box-shadow: none !important;
+              background: transparent !important;
+              padding: 0 !important;
+            }
+
+            .search-input {
+              width: 100%;
+            }
+          }
+
           .search-input {
             flex: 1;
             min-width: 0;
@@ -341,6 +357,14 @@
   }
 }
 
+.job-suggestion-option {
+  padding: 4px 2px;
+  color: @jp-text-primary;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
 @media (max-width: 768px) {
   .job-portal-header {
     .top-utility-bar .utility-container {
diff --git a/src/components/JobPortalHeader/index.tsx b/src/components/JobPortalHeader/index.tsx
index 4e5dbc3..deea569 100644
--- a/src/components/JobPortalHeader/index.tsx
+++ b/src/components/JobPortalHeader/index.tsx
@@ -1,5 +1,6 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import {
+  AutoComplete,
   Input,
   Select,
   Button,
@@ -26,7 +27,7 @@ import {
   PORTAL_LOGIN_URL,
   prefetchJobPortalUserInfo,
 } from '@/utils/jobPortalAuth';
-import { getJobRecommend } from '@/services/common/jobTitle';
+import { getJobRecommend, getJobSuggestions } from '@/services/common/jobTitle';
 import { getMessageTotal } from '@/services/jobportal/user';
 import topBg1 from '@/assets/images/top-bg1.png';
 import topBg2 from '@/assets/images/top-bg2.png';
@@ -53,6 +54,9 @@ const JobPortalHeader: React.FC<JobPortalHeaderProps> = ({
   const [jobRecommendData, setJobRecommendData] = useState<any>(null);
   const [currentBgIndex, setCurrentBgIndex] = useState<number>(0);
   const [unreadCount, setUnreadCount] = useState<number>(0);
+  const [suggestions, setSuggestions] = useState<string[]>([]);
+  const [suggestionsLoading, setSuggestionsLoading] = useState<boolean>(false);
+  const suggestionRequestId = useRef(0);
 
   const location = useLocation();
 
@@ -195,10 +199,12 @@ const JobPortalHeader: React.FC<JobPortalHeaderProps> = ({
   }, [showHotJobs]);
 
   // 处理搜索功能
-  const handleSearch = () => {
-    if (searchValue.trim()) {
+  const handleSearch = (value?: string) => {
+    const keyword = (value ?? searchValue).trim();
+    if (keyword) {
+      setSuggestions([]);
       // 跳转到职位列表页面，传递搜索参数
-      history.push(`/job-portal/list`, { queryParams: { name: searchValue.trim() } });
+      history.push(`/job-portal/list`, { queryParams: { name: keyword } });
     } else {
       message.warning('请输入搜索关键词');
     }
@@ -209,6 +215,40 @@ const JobPortalHeader: React.FC<JobPortalHeaderProps> = ({
     setSearchValue(e.target.value);
   };
 
+  // 输入停止后请求岗位联想，避免每个字符都立即请求后端。
+  useEffect(() => {
+    const keyword = searchValue.trim();
+    const requestId = ++suggestionRequestId.current;
+
+    if (!keyword) {
+      setSuggestions([]);
+      setSuggestionsLoading(false);
+      return;
+    }
+
+    const timer = window.setTimeout(async () => {
+      setSuggestionsLoading(true);
+      try {
+        const response = await getJobSuggestions(keyword, 10);
+        if (requestId !== suggestionRequestId.current) {
+          return;
+        }
+        const data = Array.isArray(response?.data) ? response.data : [];
+        setSuggestions(data.filter((item): item is string => typeof item === 'string' && item.trim().length > 0));
+      } catch (error) {
+        if (requestId === suggestionRequestId.current) {
+          setSuggestions([]);
+        }
+      } finally {
+        if (requestId === suggestionRequestId.current) {
+          setSuggestionsLoading(false);
+        }
+      }
+    }, 250);
+
+    return () => window.clearTimeout(timer);
+  }, [searchValue]);
+
   // 处理回车搜索
   const handleSearchKeyPress = (e: React.KeyboardEvent<HTMLInputElement>) => {
     if (e.key === 'Enter') {
@@ -216,6 +256,11 @@ const JobPortalHeader: React.FC<JobPortalHeaderProps> = ({
     }
   };
 
+  const suggestionOptions = suggestions.map((suggestion) => ({
+    value: suggestion,
+    label: <div className="job-suggestion-option">{suggestion}</div>,
+  }));
+
   // 处理热门职位点击
   const handleHotJobClick = (job: string) => {
     history.push(`/job-portal/list`, { queryParams: { name: job } });
@@ -355,19 +400,28 @@ const JobPortalHeader: React.FC<JobPortalHeaderProps> = ({
                     <Option value="job-type">找工作</Option>
                   </Select>
                   <span className="search-divider" />
-                  <Input
-                    className="search-input"
-                    placeholder="搜索职位、公司"
-                    bordered={false}
+                  <AutoComplete
+                    className="search-input-autocomplete"
                     value={searchValue}
-                    onChange={handleSearchInputChange}
-                    onKeyPress={handleSearchKeyPress}
-                  />
+                    options={suggestionOptions}
+                    onChange={(value) => setSearchValue(value)}
+                    onSelect={(value) => handleSearch(value)}
+                    popupMatchSelectWidth={false}
+                    notFoundContent={suggestionsLoading ? '正在搜索...' : null}
+                  >
+                    <Input
+                      className="search-input"
+                      placeholder="搜索职位、公司"
+                      bordered={false}
+                      onChange={handleSearchInputChange}
+                      onKeyDown={handleSearchKeyPress}
+                    />
+                  </AutoComplete>
                   <Button
                     type="primary"
                     className="search-submit"
                     icon={<SearchOutlined />}
-                    onClick={handleSearch}
+                    onClick={() => handleSearch()}
                   >
                     搜索
                   </Button>
diff --git a/src/services/common/jobTitle.ts b/src/services/common/jobTitle.ts
index 820f38f..cbd8d05 100644
--- a/src/services/common/jobTitle.ts
+++ b/src/services/common/jobTitle.ts
@@ -18,6 +18,14 @@ export async function getJobRecommend(params?: { jobTitle?: string }) {
   });
 }
 
+/** 获取岗位名称联想 GET /api/app/job/suggest */
+export async function getJobSuggestions(keyword: string, limit = 10) {
+  return request<{ code: number; msg?: string; data?: string[] }>('/api/app/job/suggest', {
+    method: 'GET',
+    params: { keyword, limit },
+  });
+}
+
 // 获取职位列表数据
 export async function getJobList(jobCategory: string) {
   return request('/api/cms/job/recommend', {