diff --git a/packages/mitmproxy/src/json.js b/packages/mitmproxy/src/json.js
index bfb82adefe..3094a5bcb3 100644
--- a/packages/mitmproxy/src/json.js
+++ b/packages/mitmproxy/src/json.js
@@ -15,10 +15,14 @@ module.exports = {
   // 仅用于记录日志时使用
   stringify2 (obj) {
     try {
-      return JSON5.stringify(obj)
+      return JSON.stringify(obj)
     } catch (e) {
-      log.debug('转换为JSON字符串失败, error:', e, ', obj:', obj)
-      return obj
+      try {
+        return JSON5.stringify(obj)
+      } catch (e2) {
+        log.debug('转换为JSON字符串失败, error:', e, ', obj:', obj)
+        return obj
+      }
     }
   }
 }
diff --git a/packages/mitmproxy/src/lib/proxy/mitmproxy/createRequestHandler.js b/packages/mitmproxy/src/lib/proxy/mitmproxy/createRequestHandler.js
index 094cb836d5..ec3727fa02 100644
--- a/packages/mitmproxy/src/lib/proxy/mitmproxy/createRequestHandler.js
+++ b/packages/mitmproxy/src/lib/proxy/mitmproxy/createRequestHandler.js
@@ -106,7 +106,7 @@ module.exports = function createRequestHandler (createIntercepts, middlewares, e
         function onFree () {
           url = `${rOptions.method} ➜ ${rOptions.protocol}//${rOptions.hostname}:${rOptions.port}${rOptions.path}`
           const start = new Date()
-          log.info('发起代理请求:', url, (rOptions.servername ? ', sni: ' + rOptions.servername : ''), ', headers:', rOptions.headers)
+          log.info('发起代理请求:', url, (rOptions.servername ? ', sni: ' + rOptions.servername : ''), ', headers:', jsonApi.stringify2(rOptions.headers))
 
           const isDnsIntercept = {}
           if (dnsConfig && dnsConfig.providers) {