diff --git a/packages/mitmproxy/src/lib/proxy/middleware/overwall.js b/packages/mitmproxy/src/lib/proxy/middleware/overwall.js
index 450b710..bd5a435 100644
--- a/packages/mitmproxy/src/lib/proxy/middleware/overwall.js
+++ b/packages/mitmproxy/src/lib/proxy/middleware/overwall.js
@@ -80,7 +80,7 @@ function savePacFile (pacTxt) {
 // 异步下载 pac.txt ，避免影响代理服务的启动速度
 async function downloadPacAsync (pacConfig) {
   const remotePacFileUrl = pacConfig.pacFileUpdateUrl
-  log.info('开始下载远程 pac.txt from:', remotePacFileUrl)
+  log.info('开始下载远程 pac.txt 文件:', remotePacFileUrl)
   request(remotePacFileUrl, (error, response, body) => {
     if (error) {
       log.error('下载远程 pac.txt 文件失败, error:', error, ', response:', response, ', body:', body)
diff --git a/packages/mitmproxy/src/options.js b/packages/mitmproxy/src/options.js
index 701871f..c821cb1 100644
--- a/packages/mitmproxy/src/options.js
+++ b/packages/mitmproxy/src/options.js
@@ -31,7 +31,7 @@ module.exports = (serverConfig) => {
   }
 
   const overWallConfig = serverConfig.plugin.overwall
-  if (overWallConfig.pac) {
+  if (overWallConfig.pac && overWallConfig.pac.enabled) {
     const pacConfig = overWallConfig.pac
 
     // 自动更新 pac.txt