TiAl alloy has a combination of advantages,including low density,high specific strength,excellent oxidation resistance and high-temperature creep resistance,which has broad application prospects in aerospace and other fields. However,TiAl alloy,with the poor room temperature ductility,is difficult to fabricate, and the traditional technology preparing TiAl alloy has low efficiency and high cost,therefore,the engineering application of TiAl alloy is significantly limited. In recent years,with its technical advantages such as high efficiency and low cost,the additive manufacturing technology has great advantages in the preparation of TiAl alloy components. In this paper,the basic characteristics of TiAl alloys are introduced,the research status of the technology preparing TiAl alloy is summarized from several aspects,including traditional preparation technology,laser additive manufacturing, electron beam additive manufacturing and the wire-arc additive manufacturing. The research progress and improvement methods of mechanical properties of additive manufacturing TiAl alloy are summarized as well. Finally,the future research issues and development trends of TiAl alloy additive manufacturing are analyzed and estimated.