The match-Using 0f electromagnetic clutch with three-phase asynchron0us m0torprovides a very c0nvenient condition f0r power supply and speed regulation 0f lift system of elec-tric shovel. The practiice has shown that this clutch is characterized by g00d performance whichthe change 0f external l0ad can be adapted, and high working efficiency as wel1 as reliable andconvenient operation etc- The author discusses its structure,w0rking principle, load performanceand control system etc respectiveIy,at last,and makes a summary conclusion.