Abstract: The relationship between interface morphology and mechanical properties of double layer zirconium/stainless steel composite plate under different process parameters is studied. The ripple size and brittle phase composition of the interface are detected by metallographic inspection and energy spectrum analysis. The quality of interface is tested by mechanical property test. By comparing the interface of zirconium/stainless steel composite plate under different process conditions, the optimal composite process is determined. With the optimal process parameters, the interfacial wavelength is 1 400 μm, the wave amplitude is 230 μm and the shear strength is 260 MPa. The result can provide significant references for the domestic industrial production of zirconium/stainless steel composite plate.