In order to study the evolution of mechanical properties of layered composite rocks with differentconfining pressures, various interfacial dip angles and interfacial spacings, the ZTR -2000 microcomputercontrolled rock triaxial test system was used to carry out experimental research on rock samples under differentconfining pressures. The results show that the axial compressive strength decreases with the increase of theinclination angle of the interface layer, and increases with the increase of the confining pressure. When theconfining pressure is low, the distance between the interface layers can increase the compressive strength. Athigh confining pressure, the distance between the interface layers has little effect on the compressive strength.The elastic modulus of layered composite rock changes regularly with the interval between layers. The failuretype of rock sample is affected by dip angle and interfacial layer spacing.