With the increase of mining depth,the influence of internal stress of surrounding rock on roadway becomes more and more serious.The excavation of roadway will cause the redistribution of internal stress of surrounding rock,which is influenced by geological and mining conditions.As a result,the redistribution is getting more and more complex.According to the geological conditions of the deep mining area of Sanshandao Gold Mine,the overall stability analysis of the -870 m horizontal roadway is carried out by numerical simulation software to determine the stress concentration position,then the internal stress field change of the excavated rock layer by the method of borehole stress monitoring is analyzed,determining that the tensile stress,with the maximum value being 0.6 MPa,is mainly distributed in the intersection of inclined roadways and outside-vein main haulage way,the intersection of outside-vein main haulage way and mining roadways,and the water sumps; the maximum shearing stress,30 MPa,is mainly distributed in the inclined roadways,the turnings of outside-vein main haulage way and EW-trending roadways.The study of surrounding rock stress distribution law provides guidance for the stability evaluation of surrounding pressure in stope and design optimization of surrounding rock support on roadway.