A corrosion resistant Ni31 Si12/FeNi silicides composite coating was fabricated on substrate of a low carbon steel A3 by laser cladding using the Ni, Si powders. The laser clad silicides composite coating, which is met-allurgically bonded to the steel substrate, has a rapidly solidified microstructure consisting of belt-shaped Ni31 Si12 primary phase and small amount of FeNi/N31Si12 eutectics. The average microhardness of the laser clad silicide alloy coating ranges from HV650 to HV750. The corrosion resistances of the nickel silicides composite coating as the content of alloyed-element Cr in the water solutions of 0. 5mol/l H2SO4 were evaluated utilizing the anodic polarization electrochemical corrosion-test method. Because of the inherent excellent corrosion-resisting properties of the constituting phases of Ni31 Si12 and FeNi, and the rapidly solidified homogeneous microstructure, the laser clad nickel silicides composite coating exhibits excellent corrosion resistance. Meantime it is indicated that the corrosipn resistances of laser clad Ni₃₁Si₁₂/FeNi silicides composite coating are enhanced with the increasing chromium content.