The AuSn alloy was grown by magnetron sputtering as the solder layer and the Al/Ni energetic multilayer film was used as the heat supply layer to realize the heterogeneous soldering between stainless steel and Al2O3.The morphology and basic properties of the AuSn alloy and Al/Ni energetic multilayer films were investigated by SEM, XRD and DSC. The mechanical properties of the welded joints were tested by a universal testing machine. The result shows, the mass ratio of AuSn alloy is basically 80:20, and the layered structure of the multilayer film is clear, the heat of reaction reaches 1239 J/g. Studies have shown that only AuSn solder has a shear strength of 46 MPa. After increasing the Al/Ni energetic multilayer film, the shear strength can reach 90 MPa and the strength is increased by about one time. The microstructure and phase structure of the welded joints show that the increase of shear strength is mainly due to the additional energy provided by the Al/Ni multilayer film, which makes the reaction at the interface intense, and the reaction between the ceramic metallization layer and the intermediate layer is intensified,and new reaction products formed.