The pepper is an annual herb, mostly white flowers. The fruit is usually conical or oblong. It is green when immature. It becomes bright red, yellow or purple when mature, and red is the most common. Wangdu pepper is famous for its large yield, reddish color, thick flesh, fragrant taste and long-lasting release. Wangdu pepper has a high nutritional value, and the content of vitamin C ranks first among vegetables, which is called the “crown of vegetables”.