In this paper the 5182 type aluminum alloys were cast by electomagnetic casting technology (EMC). The microstructure was analyzed by optical microscop and scanning electron microscop and compared with that of direct chill casting (DCC) , before and after the homogenizing treatment. Results show that the EMC ingots have better microstructure and excellent properties compared to the DCC ones. The hardness of EMC specimens increases twice to that of DCC ones and the fatigue life is three times higher as DCC on...