diff --git a/.devops/monitor.py b/.devops/monitor.py
index d84bf87..eff66ca 100644
--- a/.devops/monitor.py
+++ b/.devops/monitor.py
@@ -292,29 +292,41 @@ class GitMonitor:
         else:
             Logger.info("主仓库已存在，更新代码...")
 
+            # 检查主仓库是否有未提交的修改
+            cmd = "git status --porcelain"
+            result = subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True, text=True)
+            if result.stdout.strip():
+                Logger.warning("主仓库有未提交的修改，先清理工作区...")
+                cmd = "git reset --hard HEAD"
+                subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True)
+
             # 切换到主分支
             cmd = f"git checkout {self.global_branch}"
-            subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True)
+            result = subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True, text=True)
+            if result.returncode != 0:
+                Logger.error(f"切换到分支 {self.global_branch} 失败: {result.stderr}")
+                return False
 
             # 拉取最新代码
             cmd = "git pull"
             result = subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True, text=True)
             if result.returncode != 0:
-                Logger.error("拉取主仓库失败")
+                Logger.error(f"拉取主仓库失败: {result.stderr}")
                 return False
 
-            # 初始化和更新所有子模块（包括新增的子模块）
-            cmd = "git submodule update --init --recursive"
+            # 清理所有子模块的本地修改（避免文件被意外清空的问题）
+            Logger.info("清理子模块本地修改...")
+            cmd = "git submodule foreach 'git reset --hard HEAD && git clean -fd'"
             result = subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True, text=True)
             if result.returncode != 0:
-                Logger.error("初始化子模块失败")
-                return False
+                Logger.warning(f"清理子模块失败，继续执行: {result.stderr}")
 
-            # 更新所有子模块到最新代码
-            cmd = f"git submodule foreach 'git checkout {self.global_branch} && git pull'"
+            # 初始化和更新所有子模块到主仓库记录的版本
+            Logger.info("更新子模块到主仓库记录的版本...")
+            cmd = "git submodule update --init --recursive --force"
             result = subprocess.run(cmd, shell=True, cwd=repo_path, capture_output=True, text=True)
             if result.returncode != 0:
-                Logger.error("更新子模块失败")
+                Logger.error(f"更新子模块失败: {result.stderr}")
                 return False
 
             Logger.info("主仓库和子模块更新成功")