In this paper, the clad plate composed of 304 stainless steel and Q235 is taken as the research object, with the Gleeble3800 serving as the experiment platform.Drawing upon an understanding of the Gleeble3800 thermal simulator's characteristics and extensive experimentation, the influence of heating current during experiments was eliminated. This exploration resulted in the development of a hot compression test method for composite measurement, enabling precise control over temperature, pressure, and vacuum volume. These findings offer valuable insights for experimental research on clad plates. The hot compression experiment of stainless steel/carbon steel was conducted, and the effects of temperature and pressure on composite strength were investigated by measuring the tensile bond strength of stainless steel/carbon steel composite specimens under various process parameters. Additionally, a method for composite slab modeling was presented, and the rolling process was determined. Using ABAQUS finite element software, the hot rolling process of 304 stainless steel and Q235 clad plates was simulated, and the coordination of the clad plate's deformation during rolling was analyzed. To prevent oxidation at the stainless steel/carbon steel interface during rolling, the composite slab was sealed and evacuated. Subsequently, the stainless steel/carbon steel clad plate was rolled, and the composite plate's strength was measured. The effect of adding intermediate material on composite strength was studied by observing the clad plate's microstructure and analyzing element distribution postrolling. Lastly, the advantages and disadvantages of Gleeble3800 hot compression and hot rolling experiments were compared, providing valuable insights for the preparation and rolling process of stainless steel-clad plates.