Yam is the dry rhizome of dioscorea zingiberensis, which has the functions of nourishing the spleen and nourishing the stomach, and promoting the lungs. Modern research has confirmed that diosgenin in yam has anti-tumor, anti-inflammatory and cardiovascular protection activities and has high medicinal value. The extraction of yam total saponins from yam by macroporous adsorption resin has the advantages of simple equipment, easy operation and high product purity, and has a good application prospect.