diff --git a/zhuyuan-agent/deploy/pm2-zhuyuan-agent.json b/zhuyuan-agent/deploy/pm2-zhuyuan-agent.json
index b6acc0a..376e9ce 100644
--- a/zhuyuan-agent/deploy/pm2-zhuyuan-agent.json
+++ b/zhuyuan-agent/deploy/pm2-zhuyuan-agent.json
@@ -7,6 +7,7 @@
     "instances": 1,
     "exec_mode": "fork",
     "env": {
+      "PYTHONPATH": "/opt/guanghulab-repo/zhuyuan-agent",
       "HLDP_DB_PATH": "/opt/guanghulab-repo/hldp_tree.db",
       "REPO_PATH": "/opt/guanghulab-repo",
       "SERVER_PORT": "3912"