diff --git a/src/views/Company/components/CompanyOverview/BasicInfoTab.js b/src/views/Company/components/CompanyOverview/BasicInfoTab.js
index 2545c029..cbf2d82b 100644
--- a/src/views/Company/components/CompanyOverview/BasicInfoTab.js
+++ b/src/views/Company/components/CompanyOverview/BasicInfoTab.js
@@ -155,6 +155,7 @@ const BasicInfoTab = ({
   branches = [],
   disclosureSchedule = [],
   cardBg,
+  loading = false,
 }) => {
   const { isOpen, onOpen, onClose } = useDisclosure();
   const [selectedAnnouncement, setSelectedAnnouncement] = React.useState(null);
diff --git a/src/views/Company/components/CompanyOverview/index.js b/src/views/Company/components/CompanyOverview/index.js
index 7929a8bc..a5e3739f 100644
--- a/src/views/Company/components/CompanyOverview/index.js
+++ b/src/views/Company/components/CompanyOverview/index.js
@@ -79,12 +79,29 @@ const formatUtils = {
 // 主组件
 const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
   const [stockCode, setStockCode] = useState(propStockCode || "000001");
-  const [loading, setLoading] = useState(false);
 
-  // 监听props中的stockCode变化
+  // Tab 懒加载状态追踪
+  const [tabsLoaded, setTabsLoaded] = useState({
+    basicInfo: false,
+    deepAnalysis: false,
+    newsEvents: false,
+  });
+  const [activeTabIndex, setActiveTabIndex] = useState(0);
+  const [basicInfoLoading, setBasicInfoLoading] = useState(false);
+  const [deepAnalysisLoading, setDeepAnalysisLoading] = useState(false);
+
+  // 监听props中的stockCode变化 - 重置Tab状态
   useEffect(() => {
     if (propStockCode && propStockCode !== stockCode) {
       setStockCode(propStockCode);
+      // 重置 Tab 状态
+      setTabsLoaded({ basicInfo: false, deepAnalysis: false, newsEvents: false });
+      setActiveTabIndex(0);
+      // 清空深度分析和新闻数据
+      setComprehensiveData(null);
+      setValueChainData(null);
+      setKeyFactorsData(null);
+      setNewsEvents([]);
     }
   }, [propStockCode, stockCode]);
 
@@ -135,24 +152,15 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
     }));
   };
 
-  // 加载数据
-  const loadData = async () => {
-    setLoading(true);
+  // 加载基本信息数据（9个接口）- 首次加载
+  const loadBasicInfoData = async () => {
+    if (tabsLoaded.basicInfo) return;
+
+    setBasicInfoLoading(true);
     setError(null);
 
     try {
       const requests = [
-        // 深度分析数据
-        fetch(
-          `${API_BASE_URL}/api/company/comprehensive-analysis/${stockCode}`
-        ).then((r) => r.json()),
-        fetch(
-          `${API_BASE_URL}/api/company/value-chain-analysis/${stockCode}`
-        ).then((r) => r.json()),
-        fetch(
-          `${API_BASE_URL}/api/company/key-factors-timeline/${stockCode}`
-        ).then((r) => r.json()),
-        // 股票概览数据
         fetch(`${API_BASE_URL}/api/stock/${stockCode}/basic-info`).then((r) =>
           r.json()
         ),
@@ -183,9 +191,6 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
       ];
 
       const [
-        comprehensiveRes,
-        valueChainRes,
-        keyFactorsRes,
         basicRes,
         actualRes,
         concentrationRes,
@@ -197,11 +202,6 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
         disclosureRes,
       ] = await Promise.all(requests);
 
-      // 设置深度分析数据
-      if (comprehensiveRes.success) setComprehensiveData(comprehensiveRes.data);
-      if (valueChainRes.success) setValueChainData(valueChainRes.data);
-      if (keyFactorsRes.success) setKeyFactorsData(keyFactorsRes.data);
-
       // 设置股票概览数据
       if (basicRes.success) setBasicInfo(basicRes.data);
       if (actualRes.success) setActualControl(actualRes.data);
@@ -213,21 +213,61 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
       if (branchesRes.success) setBranches(branchesRes.data);
       if (announcementsRes.success) setAnnouncements(announcementsRes.data);
       if (disclosureRes.success) setDisclosureSchedule(disclosureRes.data);
+
+      setTabsLoaded((prev) => ({ ...prev, basicInfo: true }));
     } catch (err) {
       setError(err.message);
-      logger.error("CompanyOverview", "loadData", err, { stockCode });
+      logger.error("CompanyOverview", "loadBasicInfoData", err, { stockCode });
     } finally {
-      setLoading(false);
+      setBasicInfoLoading(false);
     }
   };
 
+  // 加载深度分析数据（3个接口）- Tab切换时加载
+  const loadDeepAnalysisData = async () => {
+    if (tabsLoaded.deepAnalysis) return;
+
+    setDeepAnalysisLoading(true);
+
+    try {
+      const requests = [
+        fetch(
+          `${API_BASE_URL}/api/company/comprehensive-analysis/${stockCode}`
+        ).then((r) => r.json()),
+        fetch(
+          `${API_BASE_URL}/api/company/value-chain-analysis/${stockCode}`
+        ).then((r) => r.json()),
+        fetch(
+          `${API_BASE_URL}/api/company/key-factors-timeline/${stockCode}`
+        ).then((r) => r.json()),
+      ];
+
+      const [comprehensiveRes, valueChainRes, keyFactorsRes] =
+        await Promise.all(requests);
+
+      // 设置深度分析数据
+      if (comprehensiveRes.success) setComprehensiveData(comprehensiveRes.data);
+      if (valueChainRes.success) setValueChainData(valueChainRes.data);
+      if (keyFactorsRes.success) setKeyFactorsData(keyFactorsRes.data);
+
+      setTabsLoaded((prev) => ({ ...prev, deepAnalysis: true }));
+    } catch (err) {
+      logger.error("CompanyOverview", "loadDeepAnalysisData", err, {
+        stockCode,
+      });
+    } finally {
+      setDeepAnalysisLoading(false);
+    }
+  };
+
+  // 首次加载 - 只加载基本信息
   useEffect(() => {
     if (stockCode) {
-      loadData();
+      loadBasicInfoData();
     }
   }, [stockCode]);
 
-  // 加载新闻事件
+  // 加载新闻事件（1个接口）- Tab切换时加载
   const loadNewsEvents = async (page = 1, searchQuery = "") => {
     setNewsLoading(true);
     try {
@@ -261,6 +301,11 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
 
       setNewsEvents(events);
       setNewsPagination(pagination);
+
+      // 首次加载时标记为已加载
+      if (page === 1 && !tabsLoaded.newsEvents) {
+        setTabsLoaded((prev) => ({ ...prev, newsEvents: true }));
+      }
     } catch (err) {
       logger.error("CompanyOverview", "loadNewsEvents", err, {
         stockCode,
@@ -281,13 +326,6 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
     }
   };
 
-  // 当基本信息加载完成后，加载新闻事件
-  useEffect(() => {
-    if (basicInfo) {
-      loadNewsEvents(1);
-    }
-  }, [basicInfo]);
-
   // 处理新闻搜索
   const handleNewsSearch = () => {
     loadNewsEvents(1, newsSearchQuery);
@@ -298,7 +336,20 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
     loadNewsEvents(newPage, newsSearchQuery);
   };
 
-  if (loading) {
+  // Tab 切换处理 - 懒加载
+  const handleTabChange = (index) => {
+    setActiveTabIndex(index);
+    // index 0: 基本信息 - 已首次加载
+    // index 1: 深度分析 - 切换时加载
+    // index 2: 新闻动态 - 切换时加载
+    if (index === 1 && !tabsLoaded.deepAnalysis) {
+      loadDeepAnalysisData();
+    } else if (index === 2 && !tabsLoaded.newsEvents && basicInfo) {
+      loadNewsEvents(1);
+    }
+  };
+
+  if (basicInfoLoading && !basicInfo) {
     return (
       <Box bg={bgColor} minH="100vh" p={4}>
         <Container maxW="container.xl">
@@ -466,12 +517,13 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
             </Card>
           )}
 
-          {/* 主要内容区 - 分为深度分析、基本信息和新闻动态 */}
+          {/* 主要内容区 - 分为基本信息、深度分析和新闻动态 */}
           <Tabs
             variant="soft-rounded"
             colorScheme="blue"
             size="lg"
-            defaultIndex={0}
+            index={activeTabIndex}
+            onChange={handleTabChange}
           >
             <TabList
               bg={cardBg}
@@ -480,14 +532,14 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
               shadow="md"
               flexWrap="wrap"
             >
-              <Tab fontWeight="bold">
-                <Icon as={FaBrain} mr={2} />
-                深度分析
-              </Tab>
               <Tab fontWeight="bold">
                 <Icon as={FaInfoCircle} mr={2} />
                 基本信息
               </Tab>
+              <Tab fontWeight="bold">
+                <Icon as={FaBrain} mr={2} />
+                深度分析
+              </Tab>
               <Tab fontWeight="bold">
                 <Icon as={FaNewspaper} mr={2} />
                 新闻动态
@@ -495,20 +547,7 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
             </TabList>
 
             <TabPanels>
-              {/* 深度分析标签页 */}
-              <TabPanel p={0} pt={6}>
-                <DeepAnalysisTab
-                  comprehensiveData={comprehensiveData}
-                  valueChainData={valueChainData}
-                  keyFactorsData={keyFactorsData}
-                  loading={loading}
-                  cardBg={cardBg}
-                  expandedSegments={expandedSegments}
-                  onToggleSegment={toggleSegmentExpansion}
-                />
-              </TabPanel>
-
-              {/* 基本信息标签页 */}
+              {/* 基本信息标签页 - 默认 Tab */}
               <TabPanel p={0} pt={6}>
                 <BasicInfoTab
                   basicInfo={basicInfo}
@@ -521,10 +560,24 @@ const CompanyAnalysisComplete = ({ stockCode: propStockCode }) => {
                   branches={branches}
                   disclosureSchedule={disclosureSchedule}
                   cardBg={cardBg}
+                  loading={basicInfoLoading}
                 />
               </TabPanel>
 
-              {/* 新闻动态标签页 */}
+              {/* 深度分析标签页 - 切换时加载 */}
+              <TabPanel p={0} pt={6}>
+                <DeepAnalysisTab
+                  comprehensiveData={comprehensiveData}
+                  valueChainData={valueChainData}
+                  keyFactorsData={keyFactorsData}
+                  loading={deepAnalysisLoading}
+                  cardBg={cardBg}
+                  expandedSegments={expandedSegments}
+                  onToggleSegment={toggleSegmentExpansion}
+                />
+              </TabPanel>
+
+              {/* 新闻动态标签页 - 切换时加载 */}
               <TabPanel p={0} pt={6}>
                 <NewsEventsTab
                   newsEvents={newsEvents}