For developing a city bus operation monitoring system, a hardware system composed of a vehicular Zigbee mobile terminal, a Zigbee router for an electronic bus stop board and a Zigbee coordinator is developed by the Zigbee wireless ad hoc network, bus arrival information can be positioned, acquired and broadcast in real time, and people waiting for buses can get in or transfer buses. By the WEBGIS technology as core, the oracle database technology, the WebGIS technology and the GPRS radio communication technology are integrated, and combined with computer network, a bus operation monitoring software system is developed, arrival buses can be positioned, tracked, supervised and managed in real time, and technical support is provided for scheduling management of city buses and people going out.