diff --git a/library/think/exception/DbBindParamException.php b/library/think/exception/DbBindParamException.php
new file mode 100644
index 00000000..21ddcd58
--- /dev/null
+++ b/library/think/exception/DbBindParamException.php
@@ -0,0 +1,26 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://zjzit.cn>
+// +----------------------------------------------------------------------
+
+namespace think\exception;
+
+use think\exception\DbException;
+
+/**
+ * PDO参数绑定异常
+ */
+class DbBindParamException extends DbException 
+{
+    public function __construct($message, $config, $sql, $bind, $code = 10502)
+    {
+        $this->setData('Bind Param', $bind);
+        parent::__construct($message, $config, $sql, $code);
+    }
+}
diff --git a/library/think/exception/DbException.php b/library/think/exception/DbException.php
index a816ad6a..1a14899e 100644
--- a/library/think/exception/DbException.php
+++ b/library/think/exception/DbException.php
@@ -18,18 +18,19 @@ use think\Exception;
  */
 class DbException extends Exception 
 {
-    public function __construct($message, $code, $db, $config)
+    public function __construct($message, Array $config, $sql, $code = 10500)
     {
         $this->message  = $message;
         $this->code     = $code;
 
-        $error = explode(':', $db->getError());
         $this->setData('Database Status', [
-            'Error Code'    => $error[0],
-            'Error Message' => $error[1],
-            'Error SQL'     => $db->getLastSql()
+            'Error Code'    => $code,
+            'Error Message' => $message,
+            'Error SQL'     => $sql
         ]);
 
         $this->setData('Database Config', $config);
     }
+
+
 }
diff --git a/library/think/exception/PDOException.php b/library/think/exception/PDOException.php
new file mode 100644
index 00000000..971b1c54
--- /dev/null
+++ b/library/think/exception/PDOException.php
@@ -0,0 +1,34 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://zjzit.cn>
+// +----------------------------------------------------------------------
+
+namespace think\exception;
+
+use think\exception\DbException;
+
+/**
+ * PDO异常处理类
+ * 重新封装了系统的\PDOException类
+ */
+class PDOException extends DbException 
+{
+    public function __construct(\PDOException $exception, Array $config, $sql, $code = 10501)
+    {
+        $error = $exception->errorInfo;
+
+        $this->setData('PDO Error Info', [
+            'SQLSTATE'             => $error[0],
+            'Driver Error Code'    => $error[1],
+            'Driver Error Message' => isset($error[2]) ? $error[2] : ''
+        ]);
+
+        parent::__construct($exception->getMessage(), $config, $sql, $code);
+    }
+}