diff --git a/start.sh b/start.sh
index 5959d86..299dcc9 100644
--- a/start.sh
+++ b/start.sh
@@ -14,5 +14,14 @@ cp ./word.json ./.output/
 # 4. 切换到 ./.output 目录
 cd ./.output
 
+port=3000
+pid_list=$(lsof -t -i:$port)
+
+# 杀死这些进程
+for pid in $pid_list; do
+    echo "Killing process with PID $pid"
+    kill $pid
+done
+
 # 5. 执行 node ./server/index.mjs
 node ./server/index.mjs