Abstract: Stainless steel/carbon steel clad plate as an important structural material was widely applicated in petrochemical industry, water conservancy and hydropower and ocean engineering for its excellent strength, ductility and corrosion resistance. However, the material was faced with the problem of complex and difficult welding process. This paper aims at improving the welding application of stainless steel/carbon steel clad plate. A double-sided laser welding process was developed in 2 mm +6 mm thickness stainless steel/carbon steel single-sided clad plate, in which stainless steel and carbon steel were self-fusion welded by laser with high energy density and accurate welding depth. As a result, the welding process was simplified and excellent performance in welding joint was achieved. The results indicated that the designed welding process had a good weld-ability, and a welding joint with small weld pool, small heat affected zone, uniform weld and small deformation in plate. Also, the corrosion resistance performance of the stainless steel side welds was tested and analyzed in detail. The good corrosion resistance was obtained in stainless steel layer.