In order to investigate the effects of deposition pressure on the structure and properties of the VN coatings by multiarc ion plating,the VN coating were deposited by multiarc ion plating on YT15 carbide under different nitrogen pressure.The phase structure,surface morphology of the coatings were analyzed by XRD,XPS,SEM,the filmbased bond strength was measured by scratch tester,and the friction coefficient was investigated by friction and wear tester.The results show that with the increasing of nitrogen pressure，the intensity of diffraction of VN coatings is increased and the VN coatings have（200）preferential growth direction and have low surface roughness.The microhardness and adhesion force of the coating is firstly increased and then decreased.When the nitrogen pressure is 1 Pa,the coating prepared has the maximum hardness of HV2284,the maximum adhesion force of 45 N and stable friction coefficient with an average friction coefficient of 0.85.The VN coatings with better performance can be prepared by using multiarc ion platings through changing nitrogen pressure.