diff --git a/library/think/db/driver.php b/library/think/db/driver.php
index 70cebcd7..1be594a9 100644
--- a/library/think/db/driver.php
+++ b/library/think/db/driver.php
@@ -106,7 +106,7 @@ abstract class Driver
                 $this->linkID[$linkNum] = new PDO($config['dsn'], $config['username'], $config['password'], $this->options);
             } catch (\PDOException $e) {
                 if ($autoConnection) {
-                    Log::record($e->getMessage(), 'ERR');
+                    Log::record($e->getMessage(), 'error');
                     return $this->connect($autoConnection, $linkNum);
                 } elseif ($config['debug']) {
                     throw new Exception($e->getMessage());
@@ -373,7 +373,7 @@ abstract class Driver
             $this->error .= "\n [ SQL语句 ] : " . $this->queryStr;
         }
         // 记录错误日志
-        Log::record($this->error, 'ERR');
+        Log::record($this->error, 'error');
         if ($this->config['debug']) {
             // 开启数据库调试模式
             throw new Exception($this->error);
diff --git a/library/think/db/driver/mongo.php b/library/think/db/driver/mongo.php
index 384ec1e8..53f83c14 100644
--- a/library/think/db/driver/mongo.php
+++ b/library/think/db/driver/mongo.php
@@ -195,7 +195,7 @@ class Mongo extends Driver
     public function error()
     {
         $this->error = $this->_mongo->lastError();
-        Log::record($this->error, 'ERR');
+        Log::record($this->error, 'error');
         return $this->error;
     }
 
diff --git a/library/think/db/lite.php b/library/think/db/lite.php
index 2aa066d9..ee5ca9d2 100644
--- a/library/think/db/lite.php
+++ b/library/think/db/lite.php
@@ -103,7 +103,7 @@ class Lite
                 $this->linkID[$linkNum] = new PDO($config['dsn'], $config['username'], $config['password'], $config['params']);
             } catch (\PDOException $e) {
                 if ($autoConnection) {
-                    Log::record($e->getMessage(), 'ERR');
+                    Log::record($e->getMessage(), 'error');
                     return $this->connect($autoConnection, $linkNum);
                 } elseif ($config['debug']) {
                     throw new Exception($e->getMessage());
@@ -363,7 +363,7 @@ class Lite
             $this->error .= "\n [ SQL语句 ] : " . $this->queryStr;
         }
         // 记录错误日志
-        Log::record($this->error, 'ERR');
+        Log::record($this->error, 'error');
         if ($this->config['debug']) {
             // 开启数据库调试模式
             throw new Exception($this->error);
diff --git a/library/think/loader.php b/library/think/loader.php
index 6434af59..265cfb2d 100644
--- a/library/think/loader.php
+++ b/library/think/loader.php
@@ -262,7 +262,7 @@ class Loader
             if (class_exists($class)) {
                 $model = new $class($name);
             } else {
-                Log::record('实例化不存在的类：' . $class, 'NOTIC');
+                Log::record('实例化不存在的类：' . $class, 'warn');
                 $model = new Model($name);
             }
         }