The original rock stress is a key factor influencing the mining stability in underground mines and the fundamental force of underground deformation and damage.The burial depth of Blind Vertical Shaft 1532,Pit 18 of Chener Gold Mine is over 1 000 m and there is rock burst on each level deep underground in the excavation of roadways.In light of that,6 underground measuring points by means of the stress relief method of casing hole and the magnitude and direction of the stress of underground main original rock are obtained.The paper analyzes the distribution law and uses Flac^3D numerical simulation software to simulate and analyze the stress distribution status in the underground roadways of Chener Gold Mine in the process of mining.The results show that the stress on both sides when the excavation is perpendicular to the maximum main stress doubles that when the excavation is along the maximum main stress.The paper provides scientific basis for the layout,support design and dynamic disasters prevention of the underground roadways and stopes.