diff --git a/lib/author.js b/lib/author.js
index 950419d..9b30b33 100644
--- a/lib/author.js
+++ b/lib/author.js
@@ -1,6 +1,7 @@
 var db = require('./db');
 var template = require('./template.js');
 var qs = require('querystring');
+var url = require('url');
 
 exports.home = function(request, response){
     db.query(`SELECT * FROM topic`, function(error,topics){
@@ -26,7 +27,7 @@ exports.home = function(request, response){
                     <textarea name="profile" placeholder="description"></textarea>
                 </p>
                 <p>
-                    <input type="submit">
+                    <input type="submit"  value="create">
                 </p>
             </form>
             `,
@@ -58,4 +59,48 @@ exports.create_process = function(request, response){
             }
           )
       });
+}
+
+exports.update = function(request, response){
+    db.query(`SELECT * FROM topic`, function(error,topics){
+        db.query(`SELECT * FROM author`, function(error2,authors){
+            var _url = request.url;
+            var queryData = url.parse(_url, true).query;
+            db.query(`SELECT * FROM author WHERE id=?`,[queryData.id], function(error3,author){
+                var title = 'author';
+                var list = template.list(topics);
+                var html = template.HTML(title, list,
+                `
+                ${template.authorTable(authors)}
+                <style>
+                    table{
+                        border-collapse: collapse;
+                    }
+                    td{
+                        border:1px solid black;
+                    }
+                </style>
+                <form action="/author/update_process" method="post">
+                    <p>
+                        <input type="hidden" name="id" value="${queryData.id}">
+                    </p>
+                    <p>
+                        <input type="text" name="name" value="${author[0].name}" placeholder="name">
+                    </p>
+                    <p>
+                        <textarea name="profile" placeholder="description">${author[0].profile}</textarea>
+                    </p>
+                    <p>
+                        <input type="submit" value="update">
+                    </p>
+                </form>
+                `,
+                ``
+                );
+                response.writeHead(200);
+                response.end(html);
+            });
+            
+        });
+    });
 }
\ No newline at end of file
diff --git a/lib/template.js b/lib/template.js
index 015d750..d71e100 100644
--- a/lib/template.js
+++ b/lib/template.js
@@ -49,7 +49,7 @@ module.exports = {
             <tr>
                 <td>${authors[i].name}</td>
                 <td>${authors[i].profile}</td>
-                <td>update</td>
+                <td><a href="/author/update?id=${authors[i].id}">update</a></td>
                 <td>delete</td>
             </tr>
             `
diff --git a/main.js b/main.js
index 0768e1a..b9702cb 100644
--- a/main.js
+++ b/main.js
@@ -27,6 +27,8 @@ var app = http.createServer(function(request,response){
       author.home(request, response);
     } else if(pathname === '/author/create_process'){
       author.create_process(request, response);
+    } else if(pathname === '/author/update'){
+      author.update(request, response);
     } else {
       response.writeHead(404);
       response.end('Not found');