This work aims to investigate the coexisting antiwear and anticorrosion properties of coatings on steels applied in Marine environment. TiN, TiBN and TiBN/TiN coatings were deposited on the surface of 304 stainless steels and Si substrates by arc ion plating, respectively. The surface and cross-sectional morphology, friction coefficient, electrochemical corrosion performance and tribocorrosion behavior in artificial seawater of the samples were tested. The results showed that their dry friction coefficients are almost 0.55 compared to 0.68 for the virgin 304 SS. And TiBN and TiBN/TiN coatings had much denser microstructure than columnar crystal TiN. The results of electrochemical tests showed that TiBN/TiN coatings possess the best corrosion resistance, followed by TiBN coating, while TiN coating showed worse corrosion resistance than 304 SS. In the process of friction corrosion test, the values of open circuit potential for the three coatings decreased, indicating that the on-going friction in the artificial seawater will largely increase the tendency of corrosion of the coatings, and more uniformly dense coatings that was easily to form the surface passivated layer probably exhibit an excellent antiwear and anticorrosion feature.