diff --git a/src/views/docsetDialog.ts b/src/views/docsetDialog.ts
index 49e597f..7c33ddf 100644
--- a/src/views/docsetDialog.ts
+++ b/src/views/docsetDialog.ts
@@ -427,7 +427,40 @@ export function getDocsetDialogScript(): string {
         if (message.errors && message.errors.length > 0) {
           alert('部分文件添加失败：\\n' + message.errors.join('\\n'));
         }
-        docsetFiles = [...docsetFiles, ...message.files];
+        
+        const MAX_FILE_SIZE = 10 * 1024 * 1024;
+        const MAX_TOTAL_SIZE = 50 * 1024 * 1024;
+        const MAX_FILE_COUNT = 1000;
+
+        const vaildFiles = [];
+        const errors = [];
+
+        for (const file of message.files) {
+          if (file.size > MAX_FILE_SIZE) {
+            errors.push(\`\${file.path} 超过单个文件大小限制（\${formatFileSize(MAX_FILE_SIZE)}）\`);
+          } else {
+            vaildFiles.push(file);
+          }
+        }
+
+        const newFiles = [...docsetFiles, ...vaildFiles];
+        const totalSize = newFiles.reduce((sum, f) => sum + (f.size || 0), 0);
+
+        if (newFiles.length > MAX_FILE_COUNT) {
+          errors.push(\`文档数量超过限制（最多1000个），当前数量（\${newFiles.length} 个）\`);
+          return;
+        }
+
+        if (totalSize > MAX_TOTAL_SIZE) {
+          errors.push(\`文档集总大小超过 50MB 限制，当前大小为（\${formatFileSize(MAX_TOTAL_SIZE)}）\`);
+          return;
+        }
+
+        if(errors.length > 0) {
+          alert('以下文件被跳过：\\n' + errors.join('\\n'));
+        }
+
+        docsetFiles = newFiles;
         updateDocsetDisplay();
       } else if (message.command === 'documentSetSaved') {
         renderDocumentSets(message.documentSets);