diff --git a/_config.yml b/_config.yml
index b92bdea..553a42a 100644
--- a/_config.yml
+++ b/_config.yml
@@ -143,5 +143,8 @@ mathjax: false
 # 网站成立年份(默认为 2019，若填入年份小于当前年份，则显示为 2018-2019 类似的格式)
 since: 2015
 
-#是否显示页脚信息(建议保留，有助于本主题的推广)
-pageFooter: true
\ No newline at end of file
+# 是否显示页脚信息(建议保留，有助于本主题的推广)
+pageFooter: true
+
+# 备案信息(不需要就留空)
+beian: '浙ICP备88888888'
\ No newline at end of file
diff --git a/layout/_partial/footer.ejs b/layout/_partial/footer.ejs
index 9b90ce6..33b8f02 100644
--- a/layout/_partial/footer.ejs
+++ b/layout/_partial/footer.ejs
@@ -8,7 +8,7 @@
       </li>
       <li>
         <% if (theme.pageFooter){ %>
-          Powered by
+        Powered by
         <% var hexoLink = '<a href="https://hexo.io" target="_blank">Hexo</a>'; %>
         <% var themeLink = '<a href="https://github.com/Shen-Yu/hexo-theme-ayer" target="_blank">Ayer</a>'; %>
         <%- hexoLink %> Theme <%- themeLink %>
@@ -22,6 +22,11 @@
         <%- partial('post/busuanzi') %>
         <% } %>
       </li>
+      <% if (theme.beian){ %>
+      <li>
+        <a href="http://www.beian.miit.gov.cn/" target="_black"><%= theme.beian %></a>
+      </li>
+      <% } %>
       <li>
         <!-- cnzz统计 -->
         <% if (theme.cnzz&&theme.cnzz.enable){ %>