Lotus(Nelumbo Nucifera) is nymphaeaceae perennial aquatic perennial root herb. Lotus root can be extracted as a vegetable or starch (lotus root starch). Lotus seeds are rich in protein, carbohydrates, vitamins and calcium, iron, zinc and other trace elements. There are a lot of water-soluble polysaccharide, and the composition such as alkaloid and superoxide dismutase (sod). It can be used as medicine and food. The flower is available for viewing, leaf used as medicine can be laxative and reduce blood lipid. At the same time nuciferine can prevent the absorption of fat then achieve the effect of weight loss.