Abstract: A positioning and dispatch command system of underground trackless rubber-tyred truck was designed based on the personnel positioning system. The monitoring base station were arranged in the relative position of the underground, which was connected to the central control computer system via Ethernet ring network. By the wireless communication between the monitoring base station and transceiver, the system could real-time get the quantity and distribution of underground vehicles, and automatically carried out schedule and command traffic. It solved the coal mine traffic congestion, improved transport efficiency by the using this system.