a process of producing composite materials by hot rolling of two or more metal materials . The metal substrate and the surface material are stacked together and rolled at high temperature and high pressure. The contact surface between the metals produces adhesion and friction under the action of shear deformation force, which realizes fixation and heat diffusion between the metals and metallurgical bonding of the two materials. The composite bonding strength is high and it is suitable for the composite of medium and thick materials. The thickness range of hot rolled composite plate is: 3mm-50mm, the conventional width is 1250, 1530mm, and it can also be customized according to customer requirements.