The invention discloses a preparation method for a stainless steel clad plate, and aims at solving the problem that through an existing vacuum rolling method for a metal clad plate, the time needed for vacuum extraction is long, and therefore the production cycle of the metal clad plate is quite long. The preparation method for the stainless steel clad plate includes the following steps: step 1, a first clad surface of a base material is subjected to surface treatment; step 2, a stainless steel plate is cut and shaped, a second clad surface is subjected to polishing treatment, and at the same time, a third surface is well cleaned, coated with a mold releasing agent and is ready for use; step 3, two stainless steel plates are combined together for form a cladding blank; step 4, base materials are arranged on the cladding blank and under the cladding blank, inlaid bars are arranged around the cladding blank, and a pressure welding machine is used for welding an initial blank to obtain a welding blank; and step 5, after the welding blank is heated, the welding blank is subjected to rolling and straightening, and then sides are further cut to obtain the stainless steel clad plate. According to the preparation method for the stainless steel clad plate, a vacuum extraction process is not needed, and the investment on vacuum extraction equipment can be effectively reduced; and meanwhile, production efficiency is improved, the production cycle is shortened, and the production cost of the stainless steel clad plate is lowered.