Black-bone chicken is rich in melanin, protein, B vitamins and other 18 kinds of amino acids and 18 kinds of trace elements. Among them, the contents of nicotinic acid, vitamin E, phosphorus, iron, potassium and sodium are higher than those of ordinary chicken, but the contents of cholesterol and fat are very low. The contents of serum total protein and globular protein of black-bone chicken were significantly higher than those of ordinary chicken. Black-bone chicken contains more amino acids than ordinary chicken, and contains much more iron. It is a tonic with high nutritional value, and it is called "black-hearted baby". Therefore, black-bone chicken is a good product to replenish fatigue and nourish the body. Eating black-bone chicken can improve physiological function, delay aging, strengthen tendons and bones. It has obvious effects on preventing and treating osteoporosis, rickets and iron deficiency anemia in women. Compendium of Materia Medica holds that black-bone chicken has the functions of tonifying fatigue and weakness, quenching thirst, benefiting parturient, and treating women's metrorrhagia and some debilitating diseases.