In order to promote energy-saving and emission reduction of explosion-proof vehicles in coal mines, it is necessary to develop oil electric dual power parallel drive technology based on the advantages of easy starting and good continuous working performance of diesel engines, and no exhaust pollution and low noise of electric motors. The diesel engine and electric motor should be designed in a time-sharing working mode. The author elaborated on the key technologies of explosion-proof diesel engine drive and DC overhead electric parallel drive, including on-board current collection device, design of high-voltage DC electric drive system, matching of explosion-proof diesel engine with hydraulic mechanical transmission system, matching of explosion-proof electric motor with power shift gearbox and drive axle, as well as the key technologies of explosion-proof diesel engine drive and AC cable electric parallel drive, including on-board integrated automatic cable winding device, design of high-voltage AC electric drive system, matching of explosion-proof diesel engine with hydraulic pump and motor, matching of explosion-proof electric motor with hydraulic pump and motor. Experiments have shown that the energy consumption ratio of parallel driving of explosion-proof diesel engines and DC overhead electric transport vehicles is about 6:1, and the latter can reduce the number of auxiliary transport equipment and operators by one-third; The parallel drive of explosion-proof diesel engine and AC cable electric single arm anchor drilling vehicle can reduce energy consumption by about 20%, and the latter reduces exhaust emissions by one-third, and reduces equipment operation vibration and noise by 50%.