The origin of pitaya-pitaya, also known as red dragon fruit, is the fruit of the genus Calamaceae, with red or yellow appearance and black seeds. Pitaya, native to Central America, is one of the famous tropical and subtropical fruits.

Pitaya was later introduced to Southeast Asian countries such as Vietnam and Thailand, and introduced and planted in Taiwan Province Province of China and Hainan, Guangxi, Guangdong, Fujian and Yunnan provinces of Chinese mainland.

Pitaya is rich in nutrition, containing plant albumin and anthocyanin, rich in vitamins and water-soluble dietary fiber, which are rare in general plants. Pitaya is a cool fruit. In the natural state, the fruit will mature in summer and autumn, and it is sweet and juicy, which is very popular among people.