Abstract: Coal mine accidents in Guizhou Province are frequent,and there are many deaths,and gas accidents account for a large proportion of the total number of coal mine accidents and total deaths each year.In order to effectively improve the frequent occurrence of gas accidents in Guizhou coal mines,the statistical analysis method is adopted to briefly explain from three aspects of the distribution of the number of mines in Guizhou Province,the occurrence of mine gas accidents,and the control of mine gas overlimits.It is concluded that the important factors of the frequent occurrence of gas accidents in Guizhou province can be summarized as large number of small mines and concentrated distribution of outburst mines and higgas mines.The overall occurrence of gas accidents in coal mines in Guizhou Province can be described as the number of deaths in accidents is always higher than the number of accidents,major gas accidents occur frequently,coal mine gas accidents are mainly for coal and gas outburst accidents.Low ability to control gas over limit is a major difficulty in preventing and controlling gas accidents in coal mines in Guizhou Province.Based on the above analysis,some related countermeasures suggestions are proposed,which concluded accelerating the progress of elimination of backward production capacity in the coal industry,emphasis on gas prevention and control should be focused on outburst prevention and gas drainage,increasing safety education and training improving the ability to control gas exceeding limits in coal mines.The above discussion results can provide reliable reference for Guizhou Province to effectively prevent gas accidents and improve the overall safety production level of coal mines in whole province.