A kind of motor iron core hydraulic automatic riveting machine was developed. The machine could be used to realize automatic feeding rivet and automatic wearing rivet, automatic pressure riveting of multiple rivets. Using photoelectric detection technology, rivet lack could be detected, so leakage phenomenon of riveting was prevented. Adopting multi-stage variable pressure hydraulic system, the poor pressure riveting quality caused by fixed pressure riveting machine hydraulic system deflection was improved. The use of the hydraulic automatic riveting machine can reduce labor intensity and workers. The production efficiency, product quality and quality stability are improved. 