Abstract: Based on the definition of crushing ratio, the moisture loss and drying characteristic of crushed stems of the alfalfa at different crushing ratios and pressures were studied. The influence of leaf numbers attached on an alfalfa stem on the drying rate was analyzed and compared with that of a single leaf and a single stem. The shrinkages of stems and leaves before and after drying were comparatively investigated. The results show that drying temperature has significant influence on alfalfa stems with bigger diameters and less crushing ratios. At drying temperatures of 100℃ and 80 ℃, the drying rate of the alfalfa stem with a crushing ratio of 0.245 7 is close to that of an alfalfa leaf. At a drying temperature of 100 ℃, the drying rate of the stem of 50 millimeter long with shrinkage of an alfalfa leaf is the largest in the short six leaves attached is close to that of a single leaf. The axis direction.