Abstract: The high-speed stability of train-ground wireless network is the key to ensure the safe and efficient operation of underground locomotive intelligent transportation system. Based on the unmanned in⁃ telligent transportation system of underground electric locomotive in Zhongguan Iron Mine，the wireless net⁃ work technology solution of underground electric locomotive under high speed operation is proposed. Based on the comprehensive analysis of roadway AP distribution and seamless coverage technology，signal redun⁃ dancy coverage technology，RF radio frequency attenuation technology，anti-electromagnetic anti-interfer⁃ ence technology，network management technology，etc.，the overall network architecture，roadway AP dis⁃ tribution scheme，installation technical points and detailed signal anti-interference technical measures are proposed to realize real-time and seamless two-way transmission of images and control signals between trains and ground. To ensure that a，stable，safe and conflict-free communication network is established be⁃ tween the surface control center and the locomotive，and the management and control of the underground backbone network and the train-ground wireless network are realized in the surface control center.

Key words: underground locomotive unmanned driving, train-ground wireless network, two-way trans? mission