Abstract: The introduced alfalfa varieties were planted under the same environmental for 3 years, growth period, the yield and leaf/stem were studied. The results showed that the earliest varieties were Amerigraze, Total+Z，WL324.The results in yield characteristics showed that the highest and higher varieties in dry matter (DM)were WL324 and Sandal, Debo; The leaf/stem of WL323ml is highest and Total+Z, Sandal are higher. Generally, WL323 and Sandal have both high yield and good quality.