diff --git a/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java b/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java
index 75832cf..ec0219d 100644
--- a/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java
+++ b/gitea-webhook/src/main/java/cn/hezhaohui/webhook/service/FileService.java
@@ -4,9 +4,19 @@ import cn.hutool.http.HttpUtil;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
+import java.util.Set;
 
 @Service
 public class FileService {
+    private static final Set<String> UNSUPPORTED_FILE_TYPES = Set.of(
+            ".jpg", ".jpeg", ".png", ".gif", ".bmp", ".ico", // 图片
+            ".pdf", ".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", // 文档
+            ".zip", ".rar", ".7z", ".tar", ".gz", // 压缩文件
+            ".exe", ".dll", ".so", ".class", // 可执行文件
+            ".jar", ".war", ".ear", // Java归档
+            ".gitignore", ".gitattributes", ".gitmodules" // Git配置文件
+    );
+
     // repo: http://47.121.181.112:3000/wonder/lark-webhook-sender
     // prefix: /raw/branch/main/
     // raw: gitea-webhook/src/main/java/cn/hezhaohui/webhook/controller/HookController.java
@@ -19,6 +29,13 @@ public class FileService {
     public String getRawContents(String repo, String raw) {
         String url = getRawUrl(repo, raw);
         String fileName = raw.substring(raw.lastIndexOf("/")+1);
+
+        // 检查文件拓展名
+        String fileExtension = fileName.substring(fileName.lastIndexOf(".")).toLowerCase();
+        if (UNSUPPORTED_FILE_TYPES.contains(fileExtension)) {
+            return "[FileName]" + fileName + "\n[FileContent]*不支持显示的文件类型，请忽略\n";
+        }
+
         String fileContent = HttpUtil.get(url);
         return "[FileName]" + fileName + "\n" + "[FileContent]" + fileContent + "\n";
     }