The three development stages of Al-Li alloys and their corresponding property features are briefly re鄄
viewed. The alloying function of main alloying elements Cu and Li and the micro鄄alloying elements Mg, Ag, Zn, Mn,
Sc, Zr, In and rare earth Ce are discussed in detail. The micro鄄alloying elements can modify the size, morphology
and distribution of the precipitates, or stimulate the precipitation of the new strengthening phase in Al-Li alloys, and
in addition, are able to refine the grain structure and control the recrystallization. Meanwhile, the practical applica鄄
tion and future application plans of Al-Li alloys in aerospace industry are summarized.