diff --git a/template/src/admin/contest/edit_problem.html b/template/src/admin/contest/edit_problem.html
index 7044719d..5a4ffe08 100644
--- a/template/src/admin/contest/edit_problem.html
+++ b/template/src/admin/contest/edit_problem.html
@@ -26,7 +26,7 @@
         </div>
 
         <div class="form-group col-md-12">
-            <label>题目描述</label>
+            <label>题目描述 (<a href="https://github.com/QingdaoU/OnlineJudge/wiki/MathJax%E5%9F%BA%E7%A1%80" target="_blank">想插入公式?</a>)</label>
             <ms:editor $id="contestProblemDescriptionEditor" config="contestProblemDescriptionEditor"></ms:editor>
         </div>
 
diff --git a/template/src/admin/problem/add_problem.html b/template/src/admin/problem/add_problem.html
index 6d96a7bb..c0bebcaa 100644
--- a/template/src/admin/problem/add_problem.html
+++ b/template/src/admin/problem/add_problem.html
@@ -9,7 +9,7 @@
         </div>
 
         <div class="form-group col-md-12">
-            <label>题目描述</label>
+            <label>题目描述 (<a href="https://github.com/QingdaoU/OnlineJudge/wiki/MathJax%E5%9F%BA%E7%A1%80" target="_blank">想插入公式?</a>)</label>
             <ms:editor $id="problemDescriptionEditor" config="problemDescriptionEditor"></ms:editor>
         </div>
 
diff --git a/template/src/admin/problem/edit_problem.html b/template/src/admin/problem/edit_problem.html
index f9af36b1..f8e69536 100644
--- a/template/src/admin/problem/edit_problem.html
+++ b/template/src/admin/problem/edit_problem.html
@@ -15,7 +15,7 @@
         </div>
 
         <div class="form-group col-md-12">
-            <label>题目描述</label>
+            <label>题目描述 (<a href="https://github.com/QingdaoU/OnlineJudge/wiki/MathJax%E5%9F%BA%E7%A1%80" target="_blank">想插入公式?</a>)</label>
             <ms:editor $id="problemDescriptionEditor" config="problemDescriptionEditor"></ms:editor>
         </div>
 
diff --git a/template/src/oj/problem/contest_problem.html b/template/src/oj/problem/contest_problem.html
index b844ec13..fc20ff58 100644
--- a/template/src/oj/problem/contest_problem.html
+++ b/template/src/oj/problem/contest_problem.html
@@ -39,4 +39,17 @@
 {% endblock %}
 {% block js_block %}
     <script src="/static/js/app/oj/problem/problem.js"></script>
+    <script type="text/x-mathjax-config">
+      MathJax.Hub.Config({
+        extensions: ["tex2jax.js"],
+        jax: ["input/TeX", "output/HTML-CSS"],
+        tex2jax: {
+          inlineMath: [ ['$','$'], ["\\(","\\)"] ],
+          displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
+          processEscapes: true
+        },
+        "HTML-CSS": { availableFonts: ["TeX"] }
+      });
+    </script>
+    <script src="//cdn.bootcss.com/mathjax/2.6.1/MathJax.js"></script>
 {% endblock %}
\ No newline at end of file
diff --git a/template/src/oj/problem/problem.html b/template/src/oj/problem/problem.html
index 99e87295..9cb5c174 100644
--- a/template/src/oj/problem/problem.html
+++ b/template/src/oj/problem/problem.html
@@ -48,4 +48,17 @@
 {% endblock %}
 {% block js_block %}
     <script src="/static/js/app/oj/problem/problem.js"></script>
+    <script type="text/x-mathjax-config">
+      MathJax.Hub.Config({
+        extensions: ["tex2jax.js"],
+        jax: ["input/TeX", "output/HTML-CSS"],
+        tex2jax: {
+          inlineMath: [ ['$','$'], ["\\(","\\)"] ],
+          displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
+          processEscapes: true
+        },
+        "HTML-CSS": { availableFonts: ["TeX"] }
+      });
+    </script>
+    <script src="//cdn.bootcss.com/mathjax/2.6.1/MathJax.js"></script>
 {% endblock %}
\ No newline at end of file