Abstract: t is known that two-body structure, formed by coal and rock, is the most basic structure of rock burst. We investigated the impact failure characteristics of coal and rock mass from RFPA, which varied with interface inclined angles and confining pressure in deep mining. The simulation result was found that the acoustic emission energy characteristics of coal and rock mass body and compressive strength presented the same variation regulation. The lower inclined angles, the greater the risk of rock burst, the higher the risk of interfacial sliding failure; the compressive strength of coal and rock mass is mainly determined by confining pressure under high ground stress and large inclined angles. The coal and rock mass damage model is line with 45°, divided into two kinds of shear compression failure and interfacial sliding failure. When α<45°, coal and rock mass presented the characteristic of shear compression failure; when α≥45°, failure mode turned into interfacial sliding failure.