Abstract: The research progress on laser surface processing of magnesium alloy is reviewed.Laser surface processing techniques of magnesium alloys such as melting,alloying,composite intensifying and cladding developed in recent years are introduced.Its achievements such as improving the hardness,wear and corrosion resistance of magnesium alloys,repairing the finished-product of magnesium alloys are described.Finally some prediction of its future development is also presented.