Abstract: With the statistic analysis conducted on the outburst information, the paper summarized that the coal and gas outbursts in Pingmei No. 12 Mine distribut ed in zones and were concentrated and distributed in Ji- 6 Mining Block, the areas with a floor elevation of- 350-- 600 m and the deep section of Three Level. Accordin g to the actual gas geological information and with application of the gas geological theory, the main causes of the coal and gas outburst occurred within each area wer e analyzed, the geological structure, the seam thickness variation and the inclination variation as well as the seam depth would respectively be the main control factors of the coal and gas outburst within Ji- 6 Mining Block, the area with a floor elevation of- 350- - 600 m deep section of Three Level, would control the occurrence and dis tribution law of the outburst occurred in each area and could provide theoretical basis to prevent the coal and gas outburst.