The developments of Cu-based MoS_2-dispersed composite materials to be used in high vacuum have been attempted. In conventional powder metallurgy techniques, Cu/MoS_2 loses its friction property by generating compounds due to the heating process even in inert gas atmosphere. In contrast, Cu/MoS_2 can be formed by a novel powder molding technique, compression shearing method at room temperature (COSME-RT) without heating. In the previous study, it was clarified that mechanical properties of Cu/MoS_2 were decreased while friction coefficient were decreased with increasing MoS_2 concentration. To improve the friction property of Cu/MoS_2 while maintaining its material strength, this study focuses on the difference between microstructures of two surfaces of a Cu/MoS_2 thin plate formed by COSME-RT. The microstructures and friction properties of these two surfaces were investigated. It is clarified that there is a difference in MoS_2 dispersions of two surfaces. One surface which has less aggregation of MoS_2 shows lower friction coefficient than the other. It is less than 0.1.