Abstract: The research situation of the preparation of magnesium alloys by pulsed magnetic field in recent years was reviewed. The mechanism of pulsed magnetic field on the solidification process of magnesium alloys was analyzed and summarized. The effect of pulsed magnetic field on the solidification structure, mechanical properties and corrosion behavior of magnesium alloys was introduced.The existing problems in current research and the key to solve the problems were expounded.The further research and developing direction of magnesium alloy prepared by pulsed magnetic field were prospected.