diff --git a/library/think/db/driver.php b/library/think/db/driver.php
index b07dfb8d..a1ff36a7 100644
--- a/library/think/db/driver.php
+++ b/library/think/db/driver.php
@@ -160,15 +160,21 @@ abstract class Driver {
             }
         }
         $this->bind =   [];
-        $result =   $this->PDOStatement->execute();
-        // 调试结束
-        $this->debug(false);
-        if ( false === $result ) {
+        try{
+	        $result =   $this->PDOStatement->execute();
+	        // 调试结束
+	        $this->debug(false);
+	        if ( false === $result ) {
+	            $this->error();
+	            return false;
+	        } else {
+	            return $this->getResult();
+	        }        	
+        }catch (\PDOException $e) {
             $this->error();
             return false;
-        } else {
-            return $this->getResult();
         }
+
     }
 
     /**
@@ -207,18 +213,24 @@ abstract class Driver {
             }
         }
         $this->bind =   [];
-        $result =   $this->PDOStatement->execute();
-        $this->debug(false);
-        if ( false === $result) {
+        try{
+	        $result =   $this->PDOStatement->execute();
+	        $this->debug(false);
+	        if ( false === $result) {
+	            $this->error();
+	            return false;
+	        } else {
+	            $this->numRows = $this->PDOStatement->rowCount();
+	            if(preg_match("/^\s*(INSERT\s+INTO|REPLACE\s+INTO)\s+/i", $str)) {
+	                $this->lastInsID = $this->_linkID->lastInsertId();
+	            }
+	            return $this->numRows;
+	        }        	
+        }catch (\PDOException $e) {
             $this->error();
             return false;
-        } else {
-            $this->numRows = $this->PDOStatement->rowCount();
-            if(preg_match("/^\s*(INSERT\s+INTO|REPLACE\s+INTO)\s+/i", $str)) {
-                $this->lastInsID = $this->_linkID->lastInsertId();
-            }
-            return $this->numRows;
         }
+
     }
 
     /**