The utility model provides a distributed alternating -current charging stake monitoring system based on WSN, it relates to one kind and fills electric pile monitoring system technical field. A plurality of monitoring node is connected with the gateway, and the gateway is connected with the signal tower, and the signal tower is connected with the router, router and upper computer connection, and the host computer is connected with the WEB server, the monitoring node contains sampling unit, processor module, network deployment communication module, and sampling unit and processor module are connected, and processor module and network deployment communication module are connected, the gateway contains communication module, obs core control ware, GPRS module, and communication module is connected with the obs core control ware, and the obs core control ware is connected with the GPRS module. After the technical solution is adopted, the utility model discloses beneficial effect does: realized showing at the host computer end and filled electric pile charged state and user info, reached the purpose of remote monitoring management, the system hardware cost has been reduced at to a great extent, the problem of data wireless transmission is solved, reduce staff's work load, improved monitoring management's efficiency.