diff --git a/resume.html b/resume.html
index 2d7990e..ac05b78 100644
--- a/resume.html
+++ b/resume.html
@@ -84,6 +84,7 @@
             <div class="section-title">实习经历</div>
             <div class="exp-header">
                 <div class="exp-company"><img src="img/qiniu.svg" class="company-logo qiniu" alt="七牛云"> 七牛云 | 上海七牛信息技术有限公司</div>
+                <a href="http://47.121.181.112:40027/i/2026/08/06/6a745822150dd.jpg" class="cert-link" target="_blank">实习证明</a>
                 <div class="exp-date">2026-07 ~ 2026-08</div>
             </div>
             <div class="exp-sub">产品研发部-基础架构部 全栈开发</div>