diff --git a/admin/index.php b/admin/index.php
index 32de2fd3..72b6e05a 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -3,7 +3,7 @@
  * @Author: prpr
  * @Date:   2016-02-03 14:39:50
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-03-06 14:07:38
+ * @Last Modified time: 2016-03-06 14:40:17
  */
 require "../includes/session.inc.php";
 if (!$user->is_admin) header('Location: ../index.php?msg=看起来你并不是管理员');
@@ -42,79 +42,18 @@ if (!$user->is_admin) header('Location: ../index.php?msg=看起来你并不是
 </div>
 
 <div class="container">
-    <table class="pure-table pure-table-horizontal">
-        <thead>
-            <tr>
-                <th>#</th>
-                <th>用户名</th>
-                <th>预览材质</th>
-                <th>更改材质</th>
-                <th>操作</th>
-            </tr>
-        </thead>
-
-        <tbody>
+    <div class="panel panel-default overview">
+        <div class="panel-heading">概览</div>
+        <div class="panel-body">
             <?php
             $page_now = isset($_GET['page']) ? $_GET['page'] : 1;
             $db = new Database();
-            $result = $db->query("SELECT * FROM users ORDER BY `uid` LIMIT ".(string)(($page_now-1)*30).", 30");
-            $page_total = $db->getRecordNum()/30;
-            while ($row = $result->fetch_array()) { ?>
-            <tr>
-                <td><?php echo $row['uid']; ?></td>
-                <td><?php echo $row['username']; ?></td>
-                <td>
-                    <img width="64" <?php if ($row['hash_steve']): ?>src="../skin/<?php echo $row['username']; ?>-steve.png"<?php endif; ?> />
-                    <img width="64" <?php if ($row['hash_alex']): ?>src="../skin/<?php echo $row['username']; ?>-alex.png"<?php endif; ?> />
-                    <img width="64" <?php if ($row['hash_cape']): ?>src="../cape/<?php echo $row['username']; ?>.png"<?php endif; ?> />
-                </td>
-                <td>
-                    <a href="javascript:uploadSkin('<?php echo $row['username']; ?>');" class="pure-button pure-button-primary">皮肤</a>
-                    <a href="javascript:uploadTexture('<?php echo $row['username']; ?>', 'cape');" class="pure-button pure-button-primary">披风</a>
-                    <a href="javascript:changeModel('<?php echo $row['username']; ?>');" class="pure-button pure-button-default">优先模型</a>
-                    <span>(<?php echo $row['preference']; ?>)</span>
-                </td>
-                <td>
-                    <a href="javascript:changePasswd('<?php echo $row['username'] ?>');" class="pure-button pure-button-default">更改密码</a>
-                    <a href="javascript:deleteAccount('<?php echo $row['username'] ?>');" class="pure-button pure-button-error">删除用户</a>
-                </td>
-            </tr>
-            <?php } ?>
-        </tbody>
-    </table>
-    <ul class="pagination">
-        <?php if ($page_now == 1): ?>
-        <li class="disabled">
-            <a href="#" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a>
-        </li>
-        <?php else: ?>
-        <li>
-            <a href="index.php?page=<?php echo $page_now-1; ?>" aria-label="Previous">
-                <span aria-hidden="true">&laquo;</span>
-            </a>
-        </li>
-        <?php endif;
-
-        for ($i = 1; $i <= $page_total; $i++) {
-            if ($i == $page_now) {
-                echo '<li class="active"><a href="#">'.(string)$i.'</a></li>';
-            } else {
-                echo '<li><a href="index.php?page='.$i.'">'.(string)$i.'</a></li>';
-            }
-        }
-
-        if ($page_now == $page_total): ?>
-        <li class="disabled">
-            <a href="#" aria-label="Next"><span aria-hidden="true">&raquo;</span></a>
-        </li>
-        <?php else: ?>
-        <li>
-            <a href="index.php?page=<?php echo $page_now+1; ?>" aria-label="Next">
-                <span aria-hidden="true">&raquo;</span>
-            </a>
-        </li>
-        <?php endif; ?>
-     </ul>
+            ?>
+            <p>注册用户：<?php echo $db->getRecordNum();?></p>
+            <p>上传材质总数：<?php echo count(scandir("../textures/"))-2;?></p>
+            <p>占用空间大小：<?php echo floor(Utils::getDirSize("../textures/")/1024)."KB";?></p>
+        </div>
+    </div>
 </div>
 
 </body>
diff --git a/admin/manage.php b/admin/manage.php
new file mode 100644
index 00000000..2d5a4288
--- /dev/null
+++ b/admin/manage.php
@@ -0,0 +1,128 @@
+<?php
+/**
+ * @Author: printempw
+ * @Date:   2016-03-06 14:19:20
+ * @Last Modified by:   printempw
+ * @Last Modified time: 2016-03-06 14:32:16
+ */
+require "../includes/session.inc.php";
+if (!$user->is_admin) header('Location: ../index.php?msg=看起来你并不是管理员');
+?>
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>用户管理 - <?php echo SITE_TITLE; ?></title>
+    <link rel="shortcut icon" href="../assets/images/favicon.ico">
+    <link rel="stylesheet" href="../libs/pure/pure-min.css">
+    <link rel="stylesheet" href="../libs/pure/grids-responsive-min.css">
+    <link rel="stylesheet" href="../assets/css/style.css">
+    <link rel="stylesheet" href="../assets/css/profile.style.css">
+    <link rel="stylesheet" href="../assets/css/admin.style.css">
+    <link rel="stylesheet" href="../libs/ply/ply.css">
+</head>
+
+<body>
+<div class="header">
+    <div class="home-menu pure-menu pure-menu-horizontal pure-menu-fixed">
+        <a class="pure-menu-heading" href="../index.php"><?php echo SITE_TITLE; ?></a>
+        <ul class="pure-menu-list">
+            <li class="pure-menu-item">
+                <a class="pure-menu-link" href="../user/profile.php">个人设置</a>
+            </li>
+            <?php include "../includes/welcome.inc.php"; ?>
+        </ul>
+        <div class="home-menu-blur">
+            <div class="home-menu-wrp">
+                <div class="home-menu-bg"></div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<div class="container">
+    <table class="pure-table pure-table-horizontal">
+        <thead>
+            <tr>
+                <th>#</th>
+                <th>用户名</th>
+                <th>预览材质</th>
+                <th>更改材质</th>
+                <th>操作</th>
+            </tr>
+        </thead>
+
+        <tbody>
+            <?php
+            $page_now = isset($_GET['page']) ? $_GET['page'] : 1;
+            $db = new Database();
+            $result = $db->query("SELECT * FROM users ORDER BY `uid` LIMIT ".(string)(($page_now-1)*30).", 30");
+            $page_total = $db->getRecordNum()/30;
+            while ($row = $result->fetch_array()) { ?>
+            <tr>
+                <td><?php echo $row['uid']; ?></td>
+                <td><?php echo $row['username']; ?></td>
+                <td>
+                    <img width="64" <?php if ($row['hash_steve']): ?>src="../skin/<?php echo $row['username']; ?>-steve.png"<?php endif; ?> />
+                    <img width="64" <?php if ($row['hash_alex']): ?>src="../skin/<?php echo $row['username']; ?>-alex.png"<?php endif; ?> />
+                    <img width="64" <?php if ($row['hash_cape']): ?>src="../cape/<?php echo $row['username']; ?>.png"<?php endif; ?> />
+                </td>
+                <td>
+                    <a href="javascript:uploadSkin('<?php echo $row['username']; ?>');" class="pure-button pure-button-primary">皮肤</a>
+                    <a href="javascript:uploadTexture('<?php echo $row['username']; ?>', 'cape');" class="pure-button pure-button-primary">披风</a>
+                    <a href="javascript:changeModel('<?php echo $row['username']; ?>');" class="pure-button pure-button-default">优先模型</a>
+                    <span>(<?php echo $row['preference']; ?>)</span>
+                </td>
+                <td>
+                    <a href="javascript:changePasswd('<?php echo $row['username'] ?>');" class="pure-button pure-button-default">更改密码</a>
+                    <a href="javascript:deleteAccount('<?php echo $row['username'] ?>');" class="pure-button pure-button-error">删除用户</a>
+                </td>
+            </tr>
+            <?php } ?>
+        </tbody>
+    </table>
+    <ul class="pagination">
+        <?php if ($page_now == 1): ?>
+        <li class="disabled">
+            <a href="#" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a>
+        </li>
+        <?php else: ?>
+        <li>
+            <a href="index.php?page=<?php echo $page_now-1; ?>" aria-label="Previous">
+                <span aria-hidden="true">&laquo;</span>
+            </a>
+        </li>
+        <?php endif;
+
+        for ($i = 1; $i <= $page_total; $i++) {
+            if ($i == $page_now) {
+                echo '<li class="active"><a href="#">'.(string)$i.'</a></li>';
+            } else {
+                echo '<li><a href="index.php?page='.$i.'">'.(string)$i.'</a></li>';
+            }
+        }
+
+        if ($page_now == $page_total): ?>
+        <li class="disabled">
+            <a href="#" aria-label="Next"><span aria-hidden="true">&raquo;</span></a>
+        </li>
+        <?php else: ?>
+        <li>
+            <a href="index.php?page=<?php echo $page_now+1; ?>" aria-label="Next">
+                <span aria-hidden="true">&raquo;</span>
+            </a>
+        </li>
+        <?php endif; ?>
+     </ul>
+</div>
+
+</body>
+<script type="text/javascript" src="../libs/jquery/jquery-2.1.1.min.js"></script>
+<script type="text/javascript" src="../libs/ply/ply.min.js"></script>
+<script type="text/javascript" src="../libs/cookie.js"></script>
+<script type="text/javascript" src="../assets/js/utils.js"></script>
+<script type="text/javascript" src="../assets/js/admin.utils.js"></script>
+</html>
+</body>
+</html>
diff --git a/assets/css/admin.style.css b/assets/css/admin.style.css
index cf094a66..6bafbcf7 100644
--- a/assets/css/admin.style.css
+++ b/assets/css/admin.style.css
@@ -2,8 +2,12 @@
 * @Author: prpr
 * @Date:   2016-02-04 16:47:54
 * @Last Modified by:   printempw
-* @Last Modified time: 2016-03-06 14:11:26
+* @Last Modified time: 2016-03-06 14:19:55
 */
+.overview {
+    margin: 80px auto 0;
+    width: 100%;
+}
 .pure-table {
     margin: 80px auto 0;
     width: 100%;
diff --git a/includes/Utils.class.php b/includes/Utils.class.php
index e7a77643..e4350975 100644
--- a/includes/Utils.class.php
+++ b/includes/Utils.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-01-16 23:01:33
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-03-05 19:21:47
+ * @Last Modified time: 2016-03-06 14:40:12
  */
 
 class Utils
@@ -62,6 +62,29 @@ class Utils
         }
     }
 
+    /**
+     * Recursively count the size of specified directory
+     *
+     * @param  string $dir
+     * @return int, total size in bytes
+     */
+    public static function getDirSize($dir) {
+        $dh = opendir($dir);
+        $size = 0;
+        while(false !== ($file = @readdir($dh))) {
+            if ($file!='.' and $file!='..') {
+                $path = $dir.'/'.$file;
+                if (is_dir($path)) {
+                    $size += $this->dir_size($path);
+                } else if (is_file($path)) {
+                    $size += filesize($path);
+                }
+            }
+        }
+        closedir($dh);
+        return $size;
+    }
+
     /**
      * Simple SQL injection protection
      *