Abstract: The microstructures and properties of the interface and lamination of 2205 dual-phase stainless steel rolled composite plate with different compression ratios are compared by metallographic microscope observation, chemical immersion and electrochemical corrosion test, Vickers hardness and shear strength test. It is found the composite plates with the compression ratios of 4 and 6 are composed of austenite and ferrite, and that the boundary between the austenite and ferrite is jagged. The carbon steel side at the interface between the base and cover metals is single ferrite, and a discontinuous black strip can be seen on the stainless steel side. Compared with the composite plate with the compression ratio of 4, the cover metal of the composite plate with the compression ratio of 6 has higher ferrite content, smaller and longer austenite γ phase, and better corrosion resistance. But there is no significant difference in strength. The interface between the base and cover metals is flatter and has lower binding force.