Tomato has bright color, beautiful shape, sweet and sour taste and rich nutrition. It can not only be used as raw fruit food, but also can be cooked into delicious dishes, which can be called "fruit in dish". Tomato is rich in nutrition. It contains a kind of vitamin, which is a coenzyme component of human dehydrogenase. It participates in the oxidation-reduction process of the body and plays an important role in promoting digestive function and maintaining skin and nerve health. The fruit acid contained in tomatoes can also reduce the cholesterol content in the blood and is beneficial to hyperlipidemia. According to pharmacological research, tomato juice has the effect of slowly reducing blood pressure, diuresis and detumescence, and has good auxiliary treatment effect on patients with hypertension and kidney disease.