Abstract: In order to resolve the driving range shortage of flame-proof battery electric vehicle which used in coal mine production,the key factors influenced the driving range were inferred through the analysis of its system configuration.Meanwhile,from two aspects of reducing quality of vehicle equipment and improving system efficiency,the characteristics and application effects of explosion-proof cylinder thin-walled battery box technology, air spring suspension technology, new multi-functional driving axle technology and energy-saving hydraulic braking technology are introduced respectively.All the technologies have been used in the design and production of flame-proof battery electric vehicle,which led to the cost reduction for about 90 thousand yuan and the driving range extension for 15%.The application of these technologies effectively promoted the usage of FPBEV in the mine auxiliary transportation.