Abstract: In order to slove the problem of explosion-proof diesel engine trackless rubber wheel vehicle using in long-distance inclined roadway coal mine will also cause exhibiting serious in severe exceeded emissions of diesel exhaust gas and increased fuel consumption when running uphill and the problem of the downhill brake fails, there is a safety hazard. Discusses the design features and key technologies of the explosion-proof diesel trackless rubber vehicle that meets the large carrying capacity of the long-distance inclined roadway in the Xiaojiawa and Gaotouyao coal mines from reduction of volume load ratio，improve adhesion，optimal design of transmission system，finite slip differential and design of brake system. The use indicates that the vehicle has a large carrying capacity, a high climbing speed, as well as a safe and reliable downhill braking system.