Abstract: In order to investigate the propagation law of gas explosion and reduce coal mine safety accidents,the propagation characteristics of gas explosion shock wave in coal mining face under two ventilation modes were systematically analyzed by taking the gas accumulation area in the corner of 3-510 working face of Jingfang Coal Mine as an example. The results show that: the power function model change rule of the Y-shaped ventilation working face and air inlet 1 area, s the peak overpressure attenuation process,and the peak overpressure attenuation rate curve of air inlet 2 and the return airway shows a trend of first rising and then falling; W-type ventilation system air inlet 1 and air inlet 2 peak overpressure attenuation continues to show the power function characteristics,but the return airway peak overpressure attenuation is transformed into the form of the exponential function,showing a different attenuation mechanism. Regardless of the type of ventilation,with the increase of the distance from the source,the peak overpressure in the return airway shows a decreasing trend,and the rate of attenuation slows down gradually,but the trend is more significant in the W-type ventilation system.