For studying the law of mine strata pressure appearance and it’s control technology in excavating deep buried coal,according to the geotechnical conditions of the first mining area with burial depth of about 1000m in Zhaolou coal mine,Heze minefield,the changing laws of stress in the coal seam,roof and floor because of mining were studied by similitude material simulation experiment.The results showed that because of the excavation of coal,the stress mutative in the coal pillar was evidence and sharp,the changes of pressure in the coal pillar was closely related to the deformation of main roof;during mining the influence distances in the coal floor and coal pillar ahead of work face were similar,reflecting the approximate synchrony between the pressure mutative of in coal floor and in coal pillar ahead of the work face;the pressure mutative in main roof is related to the collapse of main roof,reflecting the significance of deformation of main roof to the occurrence of rock outburst.