Trangle bean is a very precious and rare germplasm resources, belong to high nutrition legume, rich in various plant protein and amino acid, vitamin, crude fiber, and calcium, magnesium, iron and other ingredients. Among them have 28% protein, 5% fat, 61% carbohydrates, fiber 4% - 6% , it contains more than 10 amino acids, 8 kinds of amino acids are the necessary for human, , and all have higher levels than oats and 2 or more times. Widely used in steaming, boil, fry or juice, diabetes, is an ideal health food for Diabetes, hypertension and kidney infirm people. It still can do diuretics, demolished milk agent to cure insomnia, prevent the skin disease and disorder of gallbladder.