diff --git a/keepalive.sh b/keepalive.sh
index 002f3d4..c06ffa2 100755
--- a/keepalive.sh
+++ b/keepalive.sh
@@ -6,6 +6,12 @@ PORT=16016
 APP_DIR="/home/openclaw/.openclaw/workspace-hz4th_coder/works/data-chart-tool"
 LOG_FILE="$APP_DIR/logs/server.log"
 
+# node 绝对路径（cron 环境 PATH 不含 nvm，必须用全路径）
+NODE_BIN="$HOME/.nvm/versions/node/v24.15.0/bin/node"
+if [ ! -x "$NODE_BIN" ]; then
+    NODE_BIN="$(command -v node 2>/dev/null)"
+fi
+
 # 检查端口是否被占用
 if ss -tlnp | grep -q ":$PORT "; then
     # 检查是不是 node 进程
@@ -28,9 +34,13 @@ if ss -tlnp | grep -q ":$PORT "; then
 fi
 
 # 启动 node 服务
+if [ -z "$NODE_BIN" ] || [ ! -x "$NODE_BIN" ]; then
+    echo "[$(date)] ERROR: node 未找到，无法启动"
+    exit 1
+fi
 echo "[$(date)] Starting data-chart-tool..."
 cd "$APP_DIR"
-nohup node server.js >> "$LOG_FILE" 2>&1 &
+nohup "$NODE_BIN" server.js >> "$LOG_FILE" 2>&1 &
 echo "[$(date)] Started with PID $!"
 
 # 等待启动