Winter melon seeds are rich in protein, fat, urease, saponin B vitamins and so on. The fat contained in winter melon seeds is mainly unsaturated fatty acids, and linoleic acid is also the main component, which can reduce cholesterol and glycerate in human blood and help to prevent and treat coronary heart disease. Linoleic acid and other substances in vegetable oil contained in winter melon seeds are cosmetic agents for moistening skin. Unsaturated fatty acids can make the face rosy and shiny, the skin tender and soft, and the hair black and bright. Modern nutrition research has found that winter melon seeds contain saponin, fat, citrulline, unsaturated fatty acid, oleic acid and other components, which can effectively reduce the content of fat and cholesterol in blood and have positive significance for the prevention and treatment of cardiovascular diseases. In addition, winter melon seeds can also promote the immune function of the human body. After hot water extraction, the dialysate was obtained by dialysis, which showed a concentration-dependent effect on mitogenic activity of mouse lymphocytes. The dialysate is a B cell mitogen, which has PBA (clonal B cell activator) activity and adjuvant activity, which significantly increases the number of PFC (plaque-forming cells) and shows immune promotion effect.