diff --git a/backend/coldstart/server.js b/backend/coldstart/server.js
index 19862c14..f3b30b71 100644
--- a/backend/coldstart/server.js
+++ b/backend/coldstart/server.js
@@ -10,17 +10,47 @@ const config = require("./config.json");
 const PORT = config.serverPort || 3014;
 const WEBHOOK_URL = config.webhookUrl;
 const LOG_PATH = path.join(__dirname, config.logPath);
+const HISTORY_PATH = path.join(__dirname, config.historyPath);
 const RETRY_COUNT = config.retryCount || 3;
+const AUTO_CLEAN_DAYS = config.autoCleanDays || 7;
 // 确保日志目录存在
 if (!fs.existsSync(LOG_PATH)) {
   fs.mkdirSync(LOG_PATH, { recursive: true });
 }
+// 初始化历史记录文件
+const initHistoryFile = () => {
+  if (!fs.existsSync(HISTORY_PATH)) {
+    fs.writeFileSync(HISTORY_PATH, JSON.stringify([], null, 2), "utf8");
+  }
+};
+initHistoryFile();
 // 日志写入函数
 const writeLog = (content) => {
   const logFile = path.join(LOG_PATH, `warmup-${moment().format("YYYY-MM-DD")}.log`);
-  const logContent = `[${moment().toISOString()}] ${content}\\n`;
+  const logContent = `[${moment().toISOString()}] ${content}\n`;
   fs.appendFileSync(logFile, logContent, "utf8");
 };
+// 读取历史记录
+const readHistory = () => {
+  const rawData = fs.readFileSync(HISTORY_PATH, "utf8");
+  return JSON.parse(rawData) || [];
+};
+// 写入历史记录
+const writeHistory = (data) => {
+  fs.writeFileSync(HISTORY_PATH, JSON.stringify(data, null, 2), "utf8");
+};
+// 自动清理旧记录
+const cleanOldHistory = () => {
+  const history = readHistory();
+  const now = moment();
+  const filteredHistory = history.filter(item => {
+    return now.diff(moment(item.timestamp), "days") < AUTO_CLEAN_DAYS;
+  });
+  if (filteredHistory.length !== history.length) {
+    writeHistory(filteredHistory);
+    writeLog(`自动清理历史记录：移除${history.length - filteredHistory.length}条超过${AUTO_CLEAN_DAYS}天的记录`);
+  }
+};
 // 飞书Webhook通知函数
 const sendFeishuWebhook = async (warmupData) => {
   if (!WEBHOOK_URL) {
@@ -63,9 +93,14 @@ const warmup = async () => {
     elapsed,
     details
   };
+  // 写入历史记录+自动清理
+  const history = readHistory();
+  history.push(warmupData);
+  cleanOldHistory();
+  writeHistory(history);
+  writeLog(`热身完成：${JSON.stringify(warmupData)}，已写入历史记录`);
   // 发送Webhook通知（不阻塞热身流程）
   sendFeishuWebhook(warmupData);
-  writeLog(`热身完成：${JSON.stringify(warmupData)}`);
   return warmupData;
 };
 // 自动热身（带失败重试）
@@ -96,7 +131,8 @@ app.get("/warmup/auto", (req, res) => {
     data: {
       autoWarmupEnabled: true,
       retryCount: RETRY_COUNT,
-      lastRun: moment().subtract(5, "minutes").toISOString()
+      lastRun: moment().subtract(5, "minutes").toISOString(),
+      autoCleanDays: AUTO_CLEAN_DAYS
     }
   });
 });
@@ -105,7 +141,7 @@ app.get("/warmup/logs", (req, res) => {
   try {
     const logFile = path.join(LOG_PATH, `warmup-${moment().format("YYYY-MM-DD")}.log`);
     if (fs.existsSync(logFile)) {
-      const logs = fs.readFileSync(logFile, "utf8").split("\\n").filter(line => line);
+      const logs = fs.readFileSync(logFile, "utf8").split("\n").filter(line => line);
       res.json({ code: 200, msg: "success", data: logs });
     } else {
       res.json({ code: 200, msg: "success", data: ["暂无日志"] });
@@ -131,10 +167,38 @@ app.post("/warmup/notify", async (req, res) => {
     res.json({ code: 500, msg: "fail", error: error.message });
   }
 });
+// 环节4新增：查询热身历史记录API（支持?days=N筛选）
+app.get("/warmup/history", (req, res) => {
+  try {
+    const { days } = req.query;
+    const filterDays = days ? parseInt(days) : AUTO_CLEAN_DAYS;
+    let history = readHistory();
+    const now = moment();
+    // 按天数筛选
+    if (!isNaN(filterDays)) {
+      history = history.filter(item => {
+        return now.diff(moment(item.timestamp), "days") < filterDays;
+      });
+    }
+    // 按时间倒序排列
+    history = history.sort((a, b) => moment(b.timestamp) - moment(a.timestamp));
+    res.json({
+      code: 200,
+      msg: "success",
+      data: {
+        count: history.length,
+        filterDays,
+        records: history
+      }
+    });
+  } catch (error) {
+    res.json({ code: 500, msg: "fail", error: error.message });
+  }
+});
 // 启动服务+自动热身
 app.listen(PORT, () => {
   console.log(`冷启动热身服务启动成功，端口：${PORT}`);
-  writeLog(`服务启动成功，端口：${PORT}`);
+  writeLog(`服务启动成功，端口：${PORT}，自动清理天数：${AUTO_CLEAN_DAYS}天`);
   autoWarmup(); // 启动时执行自动热身
 });
 module.exports = app;