Raw materials: half an old hen, yam, medlar, lotus seed, lily, Polygonatum odoratum, coix seed and red dates. Practice: 1. Wash the old hen and cut it into large pieces; 2. Wash Rhizoma Dioscoreae, Fructus Lycii, Semen Nelumbinis, Lily, Rhizoma Polygonati Odorati, Coicis Semen and Fructus Jujubae; 3. Put water in the pot, add yam, medlar, lotus seed, lily, Polygonatum odoratum, red dates, coix seed and ginger, add chicken pieces after the water is boiled, skim the floating foam after the fire is boiled, and turn to low heat for 2 hours; Put the right amount of salt.