Green bean has the abilities of activating and detoxification, rich in protein, various vitamins, P, Fe, Ca and other inorganic salts; It can promote appetite, lower cholesterol, anti-tumor, anti-bacterial, anti-allergic, anti-anaphylaxis, lower blood pressure and protect livers and kidneys etc.. According to nutrition expert analysis, the prevention of disease index is 245.93, and vitality index is 2.87, so it has high nutritional value, edible and medicinal values