diff --git a/library/think/Log.php b/library/think/Log.php
index bf6c04f3..c064306c 100644
--- a/library/think/Log.php
+++ b/library/think/Log.php
@@ -176,7 +176,7 @@ class Log
             }
         }
 
-        if ($result = self::$driver->save($log)) {
+        if ($result = self::$driver->save($log, true)) {
             self::$log = [];
         }
 
@@ -211,7 +211,7 @@ class Log
         is_null(self::$driver) && self::init(Config::get('log'));
 
         // 写入日志
-        if ($result = self::$driver->save($log)) {
+        if ($result = self::$driver->save($log, false)) {
             self::$log = [];
         }
 
diff --git a/library/think/log/driver/File.php b/library/think/log/driver/File.php
index fa84ac1a..85e1b56d 100644
--- a/library/think/log/driver/File.php
+++ b/library/think/log/driver/File.php
@@ -26,6 +26,7 @@ class File
         'path'        => LOG_PATH,
         'apart_level' => [],
         'max_files'   => 0,
+        'json'        => false,
     ];
 
     protected $writed = [];
@@ -41,106 +42,231 @@ class File
     /**
      * 日志写入接口
      * @access public
-     * @param array $log 日志信息
+     * @param  array    $log 日志信息
+     * @param  bool     $append 是否追加请求信息
      * @return bool
      */
-    public function save(array $log = [])
+    public function save(array $log = [], $append = false)
+    {
+        $destination = $this->getMasterLogFile();
+
+        $path = dirname($destination);
+        !is_dir($path) && mkdir($path, 0755, true);
+
+        $info = [];
+        foreach ($log as $type => $val) {
+
+            foreach ($val as $msg) {
+                if (!is_string($msg)) {
+                    $msg = var_export($msg, true);
+                }
+
+                $info[$type][] = $this->config['json'] ? $msg : '[ ' . $type . ' ] ' . $msg;
+            }
+
+            if (!$this->config['json'] && (true === $this->config['apart_level'] || in_array($type, $this->config['apart_level']))) {
+                // 独立记录的日志级别
+                $filename = $this->getApartLevelFile($path, $type);
+
+                $this->write($info[$type], $filename, true, $append);
+                unset($info[$type]);
+            }
+        }
+
+        if ($info) {
+            return $this->write($info, $destination, false, $append);
+        }
+
+        return true;
+    }
+
+    /**
+     * 获取主日志文件名
+     * @access public
+     * @return string
+     */
+    protected function getMasterLogFile()
     {
         if ($this->config['single']) {
-            $destination = $this->config['path'] . 'single.log';
+            $name = is_string($this->config['single']) ? $this->config['single'] : 'single';
+
+            $destination = $this->config['path'] . $name . '.log';
         } else {
-            $cli = IS_CLI ? '_cli' : '';
+            $cli = PHP_SAPI == 'cli' ? '_cli' : '';
 
             if ($this->config['max_files']) {
                 $filename = date('Ymd') . $cli . '.log';
                 $files    = glob($this->config['path'] . '*.log');
 
-                if (count($files) > $this->config['max_files']) {
-                    unlink($files[0]);
+                try {
+                    if (count($files) > $this->config['max_files']) {
+                        unlink($files[0]);
+                    }
+                } catch (\Exception $e) {
                 }
             } else {
-                $filename = date('Ym') . '/' . date('d') . $cli . '.log';
+                $filename = date('Ym') . DIRECTORY_SEPARATOR . date('d') . $cli . '.log';
             }
 
             $destination = $this->config['path'] . $filename;
         }
 
-        $path = dirname($destination);
-        !is_dir($path) && mkdir($path, 0755, true);
-
-        $info = '';
-        foreach ($log as $type => $val) {
-            $level = '';
-            foreach ($val as $msg) {
-                if (!is_string($msg)) {
-                    $msg = var_export($msg, true);
-                }
-                $level .= '[ ' . $type . ' ] ' . $msg . "\r\n";
-            }
-            if (in_array($type, $this->config['apart_level'])) {
-                // 独立记录的日志级别
-                if ($this->config['single']) {
-                    $filename = $path . DS . $type . '.log';
-                } elseif ($this->config['max_files']) {
-                    $filename = $path . DS . date('Ymd') . '_' . $type . $cli . '.log';
-                } else {
-                    $filename = $path . DS . date('d') . '_' . $type . $cli . '.log';
-                }
-                $this->write($level, $filename, true);
-            } else {
-                $info .= $level;
-            }
-        }
-        if ($info) {
-            return $this->write($info, $destination);
-        }
-        return true;
+        return $destination;
     }
 
-    protected function write($message, $destination, $apart = false)
+    /**
+     * 获取独立日志文件名
+     * @access public
+     * @param  string $path 日志目录
+     * @param  string $type 日志类型
+     * @return string
+     */
+    protected function getApartLevelFile($path, $type)
     {
-        //检测日志文件大小，超过配置大小则备份日志文件重新生成
-        if (is_file($destination) && floor($this->config['file_size']) <= filesize($destination)) {
-            try {
-                rename($destination, dirname($destination) . DS . time() . '-' . basename($destination));
-            } catch (\Exception $e) {
-            }
-            $this->writed[$destination] = false;
+        $cli = PHP_SAPI == 'cli' ? '_cli' : '';
+
+        if ($this->config['single']) {
+            $name = is_string($this->config['single']) ? $this->config['single'] : 'single';
+
+            $name .= '_' . $type;
+        } elseif ($this->config['max_files']) {
+            $name = date('Ymd') . '_' . $type . $cli;
+        } else {
+            $name = date('d') . '_' . $type . $cli;
         }
 
-        if (empty($this->writed[$destination]) && !IS_CLI) {
-            if (App::$debug && !$apart) {
-                // 获取基本信息
-                if (isset($_SERVER['HTTP_HOST'])) {
-                    $current_uri = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
-                } else {
-                    $current_uri = "cmd:" . implode(' ', $_SERVER['argv']);
-                }
+        return $path . DIRECTORY_SEPARATOR . $name . '.log';
+    }
 
-                $runtime    = round(microtime(true) - THINK_START_TIME, 10);
-                $reqs       = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
-                $time_str   = ' [运行时间：' . number_format($runtime, 6) . 's][吞吐率：' . $reqs . 'req/s]';
-                $memory_use = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
-                $memory_str = ' [内存消耗：' . $memory_use . 'kb]';
-                $file_load  = ' [文件加载：' . count(get_included_files()) . ']';
+    /**
+     * 日志写入
+     * @access protected
+     * @param  array     $message 日志信息
+     * @param  string    $destination 日志文件
+     * @param  bool      $apart 是否独立文件写入
+     * @param  bool      $append 是否追加请求信息
+     * @return bool
+     */
+    protected function write($message, $destination, $apart = false, $append = false)
+    {
+        // 检测日志文件大小，超过配置大小则备份日志文件重新生成
+        $this->checkLogSize($destination);
 
-                $message = '[ info ] ' . $current_uri . $time_str . $memory_str . $file_load . "\r\n" . $message;
-            }
-            $now     = date($this->config['time_format']);
-            $ip      = Request::instance()->ip();
-            $method  = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : 'CLI';
-            $uri     = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
-            $message = "---------------------------------------------------------------\r\n[{$now}] {$ip} {$method} {$uri}\r\n" . $message;
+        // 日志信息封装
+        $info['timestamp'] = date($this->config['time_format']);
 
-            $this->writed[$destination] = true;
+        foreach ($message as $type => $msg) {
+            $info[$type] = is_array($msg) ? implode("\r\n", $msg) : $msg;
         }
 
-        if (IS_CLI) {
-            $now     = date($this->config['time_format']);
-            $message = "[{$now}]" . $message;
+        if (PHP_SAPI == 'cli') {
+            $message = $this->parseCliLog($info);
+        } else {
+            // 添加调试日志
+            $this->getDebugLog($info, $append, $apart);
+
+            $message = $this->parseLog($info);
         }
 
         return error_log($message, 3, $destination);
     }
 
+    /**
+     * 检查日志文件大小并自动生成备份文件
+     * @access protected
+     * @param  string    $destination 日志文件
+     * @return void
+     */
+    protected function checkLogSize($destination)
+    {
+        if (is_file($destination) && floor($this->config['file_size']) <= filesize($destination)) {
+            try {
+                rename($destination, dirname($destination) . DIRECTORY_SEPARATOR . time() . '-' . basename($destination));
+            } catch (\Exception $e) {
+            }
+        }
+    }
+
+    /**
+     * CLI日志解析
+     * @access protected
+     * @param  array     $info 日志信息
+     * @return string
+     */
+    protected function parseCliLog($info)
+    {
+        if ($this->config['json']) {
+            $message = json_encode($info, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . "\r\n";
+        } else {
+            $now = $info['timestamp'];
+            unset($info['timestamp']);
+
+            $message = implode("\r\n", $info);
+
+            $message = "[{$now}]" . $message . "\r\n";
+        }
+
+        return $message;
+    }
+
+    /**
+     * 解析日志
+     * @access protected
+     * @param  array     $info 日志信息
+     * @return string
+     */
+    protected function parseLog($info)
+    {
+        $request     = Request::instance();
+        $requestInfo = [
+            'ip'     => $request->ip(),
+            'method' => $request->method(),
+            'host'   => $request->host(),
+            'uri'    => $request->url(),
+        ];
+
+        if ($this->config['json']) {
+            $info = $requestInfo + $info;
+            return json_encode($info, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . "\r\n";
+        }
+
+        array_unshift($info, "---------------------------------------------------------------\r\n[{$info['timestamp']}] {$requestInfo['ip']} {$requestInfo['method']} {$requestInfo['host']}{$requestInfo['uri']}");
+        unset($info['timestamp']);
+
+        return implode("\r\n", $info) . "\r\n";
+    }
+
+    protected function getDebugLog(&$info, $append, $apart)
+    {
+        if (App::$debug && $append) {
+
+            if ($this->config['json']) {
+                // 获取基本信息
+                $runtime = round(microtime(true) - THINK_START_TIME, 10);
+                $reqs    = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
+
+                $memory_use = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
+
+                $info = [
+                    'runtime' => number_format($runtime, 6) . 's',
+                    'reqs'    => $reqs . 'req/s',
+                    'memory'  => $memory_use . 'kb',
+                    'file'    => count(get_included_files()),
+                ] + $info;
+
+            } elseif (!$apart) {
+                // 增加额外的调试信息
+                $runtime = round(microtime(true) - THINK_START_TIME, 10);
+                $reqs    = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
+
+                $memory_use = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
+
+                $time_str   = '[运行时间：' . number_format($runtime, 6) . 's] [吞吐率：' . $reqs . 'req/s]';
+                $memory_str = ' [内存消耗：' . $memory_use . 'kb]';
+                $file_load  = ' [文件加载：' . count(get_included_files()) . ']';
+
+                array_unshift($info, $time_str . $memory_str . $file_load);
+            }
+        }
+    }
 }