In recent years,Mg alloy sacrificial anode makes fast progress.And its application field was larger and larger.AZ63 Mg-based alloy sacrificial anode with excellent property had also been used more and more widely.AZ63 has the characteristics of high electricity efficiency,big quantity of electricity generation,and stable working potential.The progress on the study of AZ63 Mg-based alloy sacrificial anode was overviewed.The influences of alloying elements on the performances of the AZ63 anode,and the research and application progress of the electrochemical performance of AZ63 anode in various mediums were introduced with emphasis.The existing problems in the current research were discussed.The prospect of the development trends of AZ63 was presented.