The white kidney bean extract is the mature seed extract of the legume herbaceous vine plant, phaseolusvulgaris; Mainly containing proteins, fats, carbohydrates as well as some more active functional substances such as Phytohemagglutinins (PHA), α- Amylase inhibitors, polysaccharides and dietary fiber, flavonoids, Phytohemagglutinins, food pigments, etc. and some nutrients such as vitamins, mineral elements and amino acids such as lysine, leucine and arginine, potassium, magnesium, sodium, etc; Among them, insoluble dietary fiber has the efficacy of reducing the probability of developing intestinal cancer, water-soluble dietary fiber has the function of adjusting the metabolism of sugars and lipids, flavonoids have antibacterial, anti-inflammatory, antimutagenic, antihypertensive, heat and detoxification, improving microcirculation, antitumor and other functions, kidney bean pigments have better properties such as light, thermal stability and crystallinity, amylase inhibitors have hypoglycemic effects Developmental inhibition of tumor cells by trypsin inhibitors and proteins; Commonly used in biological products for health food materials.