Shi Xia Longan, also known as Gui Yuan, is an evergreen tree of the Sapindus family and Longan genus. It grows 8-15 meters tall, flowers in spring, and fruits in summer. It is a tropical fruit native to southern China and one of the famous Lingnan fruits. Shi Xia Longan, a special product of Shijie, has thick flesh, small core, crispness, and sweetness. It is rich in nutritional value and is an excellent fruit for nourishing the body in summer. When eaten fresh, it tastes sweet and fragrant, and is very popular among consumers. Shi Xia Longan can be eaten fresh, but it is often processed into dried longan by sun or fire drying. Its flesh can be used as medicine, named Gui Yuan flesh, which has the effects of benefiting the spleen, calming the mind, replenishing blood, and nourishing beauty.