Purple eggplant is not genetically modified. The fruit color is mainly purple-red, but also white, cyan and purple-black.

Eggplant, also known as "eggplant" or "su", is one of the few purple vegetables and is also a very common home-cooked vegetable on the table. People in some areas of Jiangsu, Zhejiang and Anhui call it Luosu, and people in Guangdong and Guangxi call it Aigua. It is an annual herbaceous plant of the family Solanaceae and is perennial in the tropics. The fruits it produces are edible, mostly purple or purple-black in color, and also have light green or white varieties, and various shapes such as round, oval, pear, etc.

Eggplant was first produced in India and introduced to China in the 4th and 5th centuries AD. The eggplants cultivated in the Southern and Northern Dynasties were round, similar to wild shapes. In the Song Dynasty, long eggplants were cultivated. By the end of the Qing Dynasty, this long eggplant was Solanum was introduced to Japan.

The eggplant cultivation area nationwide is about 3 million acres, and Guangdong is about 100,000 acres. It is distributed throughout the province, with the concentration in Zhanjiang City and other northern transportation bases. The fruit shape of eggplants cultivated in Guangdong is mainly long eggplant, but also oval and round. The fruit color is mainly purple-red, but also white, cyan and purple-black. As the demand in the Beiyun market increases, the Beiyun base also likes to grow purple-black, shiny long eggplants, oval eggplants and round eggplants.