Maoxian is located in the northwestern part of Sichuan Province, in the middle and upper reaches of the Minjiang River in the southeast of Aba Tibetan and Qiang Autonomous Prefecture. It has unique natural conditions and obvious regional characteristics, which provides favorable growth conditions for the unique quality characteristics of Maoxian pepper. Maoxian pepper fruit shape is large and uniform; the skin color is bright red, the oil sac is dense, and the oil is dense; the opening is large, the inner skin is smooth and pale yellow; the aroma is rich and long-lasting, and the taste is pure.