diff --git a/extend/think/log/driver/DebugMysql.php b/extend/think/log/driver/DebugMysql.php
index 44ac683..62f8fad 100644
--- a/extend/think/log/driver/DebugMysql.php
+++ b/extend/think/log/driver/DebugMysql.php
@@ -5,7 +5,14 @@ namespace think\log\driver;
 use PDO;
 use think\contract\LogHandlerInterface;
 use think\facade\App;
+use think\log\DebugLogToolkit;
 
+/**
+ * 数据库调试日志驱动（同步）.
+ *
+ * 正常路径：单次 save() 攒批多值 INSERT（按行数/绑定体积分片）。
+ * 降级路径：DB 不可达/重连耗尽 -> 熔断 60s + DebugLogToolkit 逐行写 JSONL。
+ */
 class DebugMysql implements LogHandlerInterface
 {
     protected $enableLog = true;
@@ -17,15 +24,35 @@ class DebugMysql implements LogHandlerInterface
      */
     protected $pdo = null;
 
-    protected $file = null;
-
-    protected $fileRescource = null;
-
     protected $tableName = '';
 
     protected $reConnectTimes = 0;
 
-    protected $fileLogTimes = 0;
+    /**
+     * DB 熔断窗口截止时间戳：连接失败或重连耗尽时置 time()+60，
+     * 窗口内 save() 直接走文件降级；写库成功一次后清零.
+     */
+    protected static int $breakerUntil = 0;
+
+    /**
+     * 断线重连最大尝试次数.
+     */
+    protected const MAX_RECONNECT_TIMES = 3;
+
+    /**
+     * 熔断窗口时长（秒）.
+     */
+    protected const BREAKER_SECONDS = 60;
+
+    /**
+     * 批量 INSERT 分片上限：单条 INSERT 最大行数.
+     */
+    protected const MAX_ROWS_PER_INSERT = 500;
+
+    /**
+     * 批量 INSERT 分片上限：单条 INSERT 绑定值累计字节数（与行数上限先到为准）.
+     */
+    protected const MAX_BIND_BYTES_PER_INSERT = 262144;
 
     public $devMode = false;
 
@@ -74,47 +101,23 @@ class DebugMysql implements LogHandlerInterface
             $this->config = array_merge($this->config, $config);
         }
 
+        $this->tableName = ($config['prefix'] ?? 'ul_') . 'debug_log';
+
         try {
             $this->initConnect();
         } catch (\Throwable $th) {
             $this->pdo = null;
-            $this->initFile();
         }
-
-        $this->tableName = $config['prefix'] . 'debug_log';
     }
 
     public function save(array $log): bool
     {
-        $app_name = app('http')->getName() ?: '';
-
-        $controller_name = '';
-        $action_name = '';
-
-        if (App::runningInConsole()) {
-            $app_name = 'cli';
-        } else {
-            $controller_name = request()->controller();
-            $action_name = request()->action();
-        }
-
-        $create_time = time();
-
-        $create_time_title = date('Y-m-d H:i:s', $create_time);
-
-        $log_key = '';
-
-        if (defined('REUQEST_UID')) {
-            $log_key = REUQEST_UID;
-        } else {
-            $log_key = uniqid();
-        }
+        $rows = [];
 
         foreach ($log as $log_item) {
             // 适配 ThinkPHP 8.x 的 LogRecord 对象格式
             // 兼容旧格式：包含 type 和 message 属性的对象
             if (is_object($log_item) && isset($log_item->type) && isset($log_item->message)) {
-                $log_level = $log_item->type;
                 $log_content = $log_item->message;
             } else {
                 continue;
@@ -124,93 +127,162 @@ class DebugMysql implements LogHandlerInterface
                 $log_content = print_r($log_content, true);
             }
 
-            $log_data = [
-                'level' => $log_level,
-                'content' => $log_content,
-                'create_time' => $create_time,
-                'create_time_title' => $create_time_title,
-                'uid' => $log_key,
-                'app_name' => $app_name,
-                'controller_name' => $controller_name,
-                'action_name' => $action_name,
-            ];
+            // 行构建（CLI 判断前置、uid 解析）统一走 Toolkit
+            $rows[] = DebugLogToolkit::buildRow((string) $log_item->type, $log_content);
+        }
 
-            try {
-                if (!is_null($this->pdo)) {
-                    $this->saveByConnect($log_data);
-                } else {
-                    $this->saveByFile($log_data);
-                }
-            } catch (\Throwable $th) {
-                $this->saveByFile($log_data);
-            }
+        if ($rows === []) {
+            return true;
+        }
+
+        // DB 熔断窗口内直接走文件路径，不尝试 DB
+        if (time() < self::$breakerUntil) {
+            return $this->saveByFile($rows);
+        }
+
+        if (is_null($this->pdo)) {
+            $this->initConnect();
+        }
+
+        if (is_null($this->pdo)) {
+            // 连接失败：进入熔断窗口并降级写文件
+            self::$breakerUntil = time() + static::BREAKER_SECONDS;
+
+            return $this->saveByFile($rows);
+        }
+
+        try {
+            $this->saveByConnect($rows);
+        } catch (\Throwable $th) {
+            // 兜底：批插逃逸异常 -> 整批降级逐行写文件
+            $this->saveByFile($rows);
         }
 
         return true;
     }
 
-    protected function saveByConnect($log_data)
+    /**
+     * 批量写库：分片多值 INSERT，断线时 while 循环重连重试.
+     *
+     * 重连最多 MAX_RECONNECT_TIMES 次（计数仅在写库成功一次后清零）；
+     * 耗尽或重连失败 -> 熔断 + 剩余行全部文件降级，不再 throw。
+     */
+    protected function saveByConnect(array $rows)
     {
-        if (is_null($this->pdo)) {
-            $this->saveByFile($log_data);
+        $chunks = $this->splitRowsForInsert($rows);
+        $chunkCount = count($chunks);
 
-            return;
-        }
+        for ($i = 0; $i < $chunkCount; $i++) {
+            $inserted = false;
 
-        $this->devLog('save by connect');
-        $prepare_name = [];
-        foreach ($log_data as $key => $value) {
-            $prepare_name[] = ':' . $key;
-        }
+            while (!$inserted) {
+                try {
+                    $this->insertRows($chunks[$i]);
+                    $inserted = true;
+                } catch (\Throwable $th) {
+                    if ($this->isBreak($th)) {
+                        if ($this->reConnectTimes < static::MAX_RECONNECT_TIMES) {
+                            $this->reConnectTimes++;
+                            $this->devLog('reconnect ' . $this->reConnectTimes);
+                            $this->initConnect();
 
-        $data_keys = array_keys($log_data);
+                            if (!is_null($this->pdo)) {
+                                // 重连成功，重试当前分片
+                                continue;
+                            }
 
-        $data_keys_in_sql = implode(',', $data_keys);
+                            // 重连失败：连接失败熔断
+                            self::$breakerUntil = time() + static::BREAKER_SECONDS;
+                        } else {
+                            // 重连耗尽：熔断
+                            self::$breakerUntil = time() + static::BREAKER_SECONDS;
+                        }
+                    }
 
-        $prepare_name_in_sql = implode(',', $prepare_name);
+                    // 非 break 异常 / 熔断后：当前及剩余分片全部降级写文件
+                    $this->saveByFile(array_merge(...array_slice($chunks, $i)));
 
-        $sql = "INSERT INTO {$this->tableName} ($data_keys_in_sql)  VALUES ($prepare_name_in_sql);";
-
-        try {
-            $stmt = $this->pdo->prepare($sql);
-            $stmt->execute($log_data);
-        } catch (\Exception $th) {
-            if ($this->isBreak($th)) {
-                if ($this->reConnectTimes > 3) {
-                    $this->initFile();
-                    throw $th;
+                    return;
                 }
-                $this->initConnect();
-                $this->reConnectTimes++;
-                $this->devLog('reconnect ' . $this->reConnectTimes);
-                $this->saveByConnect($log_data);
-            } else {
-                $this->saveByFile($log_data);
             }
+
+            // 成功写库一次：清零重连计数与熔断窗口
+            $this->reConnectTimes = 0;
+            self::$breakerUntil = 0;
         }
     }
 
-    protected function saveByFile($log_data)
+    /**
+     * 单分片多值 INSERT（占位符 ? 绑定）.
+     */
+    protected function insertRows(array $rows)
+    {
+        $fields = DebugLogToolkit::FIELDS;
+
+        $rowPlaceholder = '(' . implode(',', array_fill(0, count($fields), '?')) . ')';
+        $sql = 'INSERT INTO ' . $this->tableName . ' (' . implode(',', $fields) . ') VALUES '
+            . implode(',', array_fill(0, count($rows), $rowPlaceholder));
+
+        $bindValues = [];
+        foreach ($rows as $row) {
+            foreach ($fields as $field) {
+                $bindValues[] = $row[$field];
+            }
+        }
+
+        $stmt = $this->pdo->prepare($sql);
+        $stmt->execute($bindValues);
+    }
+
+    /**
+     * 按 MAX_ROWS_PER_INSERT 行 / MAX_BIND_BYTES_PER_INSERT 绑定字节数（先到为准）分片.
+     *
+     * @return array<array<int, array>>
+     */
+    protected function splitRowsForInsert(array $rows): array
+    {
+        $chunks = [];
+        $currentRows = [];
+        $currentBytes = 0;
+
+        foreach ($rows as $row) {
+            $rowBytes = 0;
+            foreach ($row as $value) {
+                $rowBytes += strlen((string) $value);
+            }
+
+            $rowsFull = count($currentRows) >= static::MAX_ROWS_PER_INSERT;
+            $bytesFull = $currentBytes + $rowBytes > static::MAX_BIND_BYTES_PER_INSERT;
+
+            if (($rowsFull || $bytesFull) && $currentRows !== []) {
+                $chunks[] = $currentRows;
+                $currentRows = [];
+                $currentBytes = 0;
+            }
+
+            $currentRows[] = $row;
+            $currentBytes += $rowBytes;
+        }
+
+        if ($currentRows !== []) {
+            $chunks[] = $currentRows;
+        }
+
+        return $chunks;
+    }
+
+    /**
+     * 文件降级：逐行经 Toolkit 写 JSONL（Toolkit 绝不抛异常，写失败返回 false 静默）.
+     */
+    protected function saveByFile(array $rows)
     {
         $this->devLog('save by file');
 
-        // 如果文件日志超过100条，尝试重新通过数据库连接
-        if ($this->fileLogTimes > 10) {
-            $this->fileLogTimes = 0;
-            $this->initConnect();
-            $this->saveByConnect($log_data);
-
-            return;
+        foreach ($rows as $row) {
+            DebugLogToolkit::appendLine(DebugLogToolkit::encodeRow($row));
         }
 
-        try {
-            fputcsv($this->fileRescource, $log_data);
-            $this->fileLogTimes++;
-        } catch (\Throwable $th) {
-            $this->initFile();
-            $this->fileLogTimes++;
-            $this->saveByFile($log_data);
-        }
+        return true;
     }
 
     protected function initConnect()
@@ -221,13 +293,11 @@ class DebugMysql implements LogHandlerInterface
             $this->pdo = null;
         }
 
-        $this->reConnectTimes = 0;
-
         $config = $this->config;
 
         $dsn = $this->parseDsn($config);
         try {
-            $pdo = $this->createPdo($dsn, $config['username'], $config['password'], $config['params']);
+            $pdo = $this->createPdo($dsn, $config['username'], $config['password'], $config['params'] ?? []);
             $this->pdo = $pdo;
         } catch (\Throwable $th) {
             $this->pdo = null;
@@ -236,46 +306,6 @@ class DebugMysql implements LogHandlerInterface
         return $this;
     }
 
-    protected function initFile()
-    {
-        $this->devLog('init file');
-
-        if (!is_null($this->fileRescource)) {
-            return $this;
-        }
-
-        $log_path = App::getRuntimePath() . 'log/' . date('ymd') . '.csv';
-
-        $dirname = dirname($log_path);
-
-        if (!is_dir($dirname)) {
-            mkdir($dirname, 0777, true);
-        }
-
-        $first_line = false;
-        if (!file_exists($log_path)) {
-            $first_line = true;
-        }
-
-        $this->fileRescource = fopen($log_path, 'a');
-
-        if ($first_line) {
-            $fields = [
-                'level',
-                'content',
-                'create_time',
-                'create_time_title',
-                'uid',
-                'app_name',
-                'controller_name',
-                'action_name',
-            ];
-            fputcsv($this->fileRescource, $fields);
-        }
-
-        return $this;
-    }
-
     /**
      * 是否断线
      *
@@ -321,16 +351,18 @@ class DebugMysql implements LogHandlerInterface
 
     protected function createPdo($dsn, $username, $password, $params)
     {
+        // 强制异常模式与连接超时，保证 prepare/execute 失败走异常路径（用户 params 可覆盖）
+        $params = array_merge([
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_TIMEOUT => 3,
+        ], (array) $params);
+
         return new PDO($dsn, $username, $password, $params);
     }
 
     public function __destruct()
     {
         $this->pdo = null;
-
-        if (!is_null($this->fileRescource)) {
-            fclose($this->fileRescource);
-        }
     }
 
     protected function devLog($content)