Abstract: With the development of the deep underground engineering, the researches on the properties and stability of deep surrounding rock are very necessary. The specimens are come from the deep roadway of a coal, and the chemical solution is prepared to simulate the deep environment. Then the specimens are cured in the solution for 60 days and testing. The experimental results show that the strength of the surrounding rock decreases under chemical corrosion, especially for damage fractured rock mass. The failure process of the specimens is very short, and the failure mode has rock burst tendency.