Abstract: Abstract: In order to solve the technical bottlenecks of mining pure electric explosion-proof vehicles that cannot effectively solve the limited volume of explosion-proof power batteries with limited volume, high vehicle quality, and low efficiency, which have seriously restricted the mileage of the vehicle, and have troubled the development and promotion of mining electric vehicles, The key technical methods to effectively improve the endurance of mining electric vehicles, such as the multi-speed transmission system and the integration of the transmission system, are introduced. Research shows that under the current situation that the performance of explosion-proof power batteries cannot be greatly improved in the short term, the above method can effectively reduce the overall vehicle quality by 8%, and increase the average mileage by 20%. Electric vehicles provide a theoretical basis and promote the development of green and efficient auxiliary transportation in coal mines.