Abstract: Aiming at the main problems of the hot-dip galvanized guardrails for superhighway, the carbon steel plate with stainless steel cladding was recommended as a new guardrail material. The preparation of stainless steel cladding guardrail by brazing/hot-rolling process was proposed, the stainless steel sheet and carbon steel plate are bonded together first by brazing in furnace, then the bonding strength is improved by hot-rolling. The results showed that an effective braze welding can be obtained by using a silver-base soldering flux developed, in which the Ag content is 15wt.%. The following parameters are regarded as ideal: the brazing temperature is 720-730°C, at which the time needed is 3-4 min. The soldering flux layer shows good plasticity in hot-rolling process. When the percent reduction is less than 30%, no cracks and lamination are found in the soldering flux layer after hot-rolling, with the shear strength of stainless steel clad guardrails up to 338.4 MPa.