Abstract: The tribological behavior of self-lubricating composite coatings of Ni-P-MoS₂ with Ni-P as matrix and MoS₂ as the dispersing agent is investigated.The results show that composite coatings of Ni-P-MoS₂ have excellent antifriction and antiscuffing properties. The partical concentration of MoS₂ and electroplating time have a great effect on its antifriction property. After heat treatment at 400℃ and one hour the antifriction property of the composite coating decrease slightly, but its antiscuffing capacity and service life increase greatly.