The invention provides a wireless-terminal-based automatically guided vehicle control method and system. The method includes the following steps that 1, a plane layout diagram of a factory workshop is prestored in a wireless terminal; 2, paths are drawn on the wireless terminal according to the layout diagram; 3, the drawn paths are transmitted to a communication base station and then distributed to a plurality of automatically guided vehicles in sequence; 4, the automatically guided vehicles analyze the paths, walk and transmit real-time data to the wireless terminal. The wireless terminal is used for monitoring, scheduling and diagnosing the system, and the wireless terminal comprises a vehicle-machine communication module, a path planning module, a system operation monitoring module, a landmark setting module, a core scheduling system module, a fault online diagnosis and processing module and an event log statement module. By means of the wireless-terminal-based automatic guided vehicle control method and system, the diagram drawing type online path planning function can be achieved, the paths of the automatically guided vehicles are directly drawn on a hand-held terminal, operation is simple and convenient, and applicability is high.