diff --git a/_config.yml b/_config.yml
index cccb4f9..8e9b6de 100644
--- a/_config.yml
+++ b/_config.yml
@@ -167,10 +167,12 @@ local_search:
 # Comment plugin
 # ---------------------------------------------------------------------------------------
 comment:
+  enable: false
+  use: valine  # values: valine | gitalk | twikoo
+
   # Valine
   # See: https://github.com/xCss/Valine
   valine:
-    enable: false
     appid:                # your leancloud application appid
     appkey:               # your leancloud application appkey
     placeholder:          # your placeholder
@@ -178,7 +180,6 @@ comment:
   # Gitalk
   # See: https://github.com/gitalk/gitalk
   gitalk:
-    enable: false
     github_id:             # GitHub repo owner
     repository:            # Repository name to store issues
     client_id:             # GitHub Application Client ID
@@ -187,7 +188,6 @@ comment:
   # Twikoo
   # See: https://github.com/imaegoo/twikoo
   twikoo:
-    enable: false
     env_id:                # Tencent Cloud environment id
     region:                # environment region. If select Guangzhou, fill in "ap-guangzhou".
 
diff --git a/layout/_partial/comment/comment.ejs b/layout/_partial/comment/comment.ejs
index 8a08cc2..3991a7c 100644
--- a/layout/_partial/comment/comment.ejs
+++ b/layout/_partial/comment/comment.ejs
@@ -3,11 +3,17 @@
     <div class="comment-area-title">
         <i class="fas fa-comments">&nbsp;<%- __('comments') %></i>
     </div>
-    <% if (theme.comment.valine.enable === true) { %>
-        <%- partial('valine') %>
-    <% } else if (theme.comment.gitalk.enable === true) { %>
-        <%- partial('gitalk') %>
-    <% } else if (theme.comment.twikoo.enable === true) { %>
-        <%- partial('twikoo') %>
+    <% if (theme.comment.enable === true && theme.comment.hasOwnProperty(theme.comment.use)) { %>
+
+        <% if  (theme.comment.use === 'valine') { %>
+            <%- partial('valine') %>
+
+        <% } else if (theme.comment.use === 'gitalk') { %>
+            <%- partial('gitalk') %>
+
+        <% } else if (theme.comment.use === 'twikoo') { %>
+            <%- partial('twikoo') %>
+
+        <% } %>
     <% } %>
 </div>
diff --git a/layout/_partial/comment/gitalk.ejs b/layout/_partial/comment/gitalk.ejs
index 607f5d6..2c5b73f 100644
--- a/layout/_partial/comment/gitalk.ejs
+++ b/layout/_partial/comment/gitalk.ejs
@@ -1,5 +1,5 @@
 <% if(
-        theme.comment.gitalk.enable
+        theme.comment.use === 'gitalk'
         && theme.comment.gitalk.client_id
         && theme.comment.gitalk.client_secret
         && theme.comment.gitalk.github_id
diff --git a/layout/_partial/comment/twikoo.ejs b/layout/_partial/comment/twikoo.ejs
index b874949..4f1882d 100644
--- a/layout/_partial/comment/twikoo.ejs
+++ b/layout/_partial/comment/twikoo.ejs
@@ -1,4 +1,4 @@
-<% if(theme.comment.twikoo.enable === true && theme.comment.twikoo.env_id) { %>
+<% if(theme.comment.use === 'twikoo' && theme.comment.twikoo.env_id) { %>
     <div class="twikoo-container">
         <script <%= theme.pjax.enable === true ? 'data-pjax' : '' %>
                 src="//cdn.jsdelivr.net/npm/twikoo@1.0.0/dist/twikoo.all.min.js"
diff --git a/layout/_partial/comment/valine.ejs b/layout/_partial/comment/valine.ejs
index 817f478..80b2f3f 100755
--- a/layout/_partial/comment/valine.ejs
+++ b/layout/_partial/comment/valine.ejs
@@ -1,5 +1,5 @@
 <% if(
-        theme.comment.valine.enable
+        theme.comment.use === 'valine'
         && theme.comment.valine.appid
         && theme.comment.valine.appkey
 ) { %>
diff --git a/layout/_partial/post-tools.ejs b/layout/_partial/post-tools.ejs
index a1ac4ac..cb7e42f 100644
--- a/layout/_partial/post-tools.ejs
+++ b/layout/_partial/post-tools.ejs
@@ -8,11 +8,7 @@
         <% } %>
 
         <!-- go comment -->
-        <% if (
-                theme.comment.valine.enable
-                || theme.comment.gitalk.enable
-                || theme.comment.twikoo.enable
-        ) { %>
+        <% if (theme.comment.enable === true && theme.comment.hasOwnProperty(theme.comment.use)) { %>
             <li class="go-comment">
                 <i class="fas fa-comment"></i>
             </li>
diff --git a/layout/article-content.ejs b/layout/article-content.ejs
index 6ec987c..275dd06 100644
--- a/layout/article-content.ejs
+++ b/layout/article-content.ejs
@@ -77,11 +77,7 @@
             </div>
         <% } %>
 
-        <% if (
-                theme.comment.valine.enable
-                || theme.comment.gitalk.enable
-                || theme.comment.twikoo.enable
-        ) { %>
+        <% if (theme.comment.enable === true && theme.comment.hasOwnProperty(theme.comment.use)) { %>
             <div class="comment-container">
                 <%- partial('_partial/comment/comment') %>
             </div>
diff --git a/source/css/layout/_partial/comment/comment.styl b/source/css/layout/_partial/comment/comment.styl
index e25dc1e..982fb73 100644
--- a/source/css/layout/_partial/comment/comment.styl
+++ b/source/css/layout/_partial/comment/comment.styl
@@ -1,12 +1,13 @@
-if (hexo-config('comment.valine.enable')) {
-  @require "./valine.styl";
+if (hexo-config('comment.enable') == true && hexo-config('comment.use') != "") {
+  if (hexo-config('comment.use') == "valine") {
+    @require "./valine.styl";
 
-} else if (hexo-config('comment.gitalk.enable')) {
-  @require "./gitalk.styl";
-
-} else if (hexo-config('comment.twikoo.enable')) {
-  @require "./twikoo.styl";
+  } else if (hexo-config('comment.use') == "gitalk") {
+    @require "./gitalk.styl";
 
+  } else if (hexo-config('comment.use') == "twikoo") {
+    @require "./twikoo.styl";
+  }
 }
 
 .comments-container {