Watermelon does not have aphrodisiac effect, watermelon is a common fruit, nutritious, sweet and delicious, is the most water-containing fruit of all fruits, containing a large amount of sugar, vitamins, pectin, amino acids, minerals and so on. In traditional Chinese medicine, watermelon has the following effects, its cold, dry, with heat dissipation, thirst, diuretic, treatment of dysentery, detoxification of alcohol, the main treatment of heatstroke fever, heat full of fluid injuries, boredom, thirst, urine, yellow urine, throat swelling, mouth sores and other diseases. Modern pharmacological studies believe that watermelon contains sugar, salt, protease with the treatment of nephritis and lower blood pressure. Eating watermelon in the heat of summer is very useful for preventing heatstroke and strengthening the body’s adaptation to the external high-temperature environment. In addition, watermelon has the role of stool, summer sweating, the heart is hot and thirsty, urine yellow and less, this time to eat watermelon not only quench the thirst, eliminate the heart of the hot, but also can have the role of diuretic.