diff --git a/build/move-md-plugin.ts b/build/move-md-plugin.ts
index 1cff4d8..2de70f0 100644
--- a/build/move-md-plugin.ts
+++ b/build/move-md-plugin.ts
@@ -21,7 +21,16 @@ const moveMarkdownFiles = (dir: string) => {
             // 检查目标文件是否存在
             if (!fs.existsSync(distPath)) {
                 fs.copyFileSync(filePath, distPath);
-                console.log(`自定义vite插件，复制 ${filePath} 到 ${distPath}`);
+                console.log(`自定义vite插件，复制 ${filePath} 到 ${distPath}（新增）`);
+            } else {
+                // 比较文件大小
+                const sourceFileSize = stat.size;
+                const distFileSize = fs.statSync(distPath).size;
+
+                if (sourceFileSize !== distFileSize) {
+                    fs.copyFileSync(filePath, distPath);
+                    console.log(`自定义vite插件，复制 ${filePath} 到 ${distPath}（文件大小不一致）`);
+                }
             }
         }
     });