Sichuan pepper is the dried mature peel of the green pepper of the Rutaceae shrub or small tree plant, which usually matures around the beginning of autumn. It is produced in Sichuan, Shaanxi, Henan, Hebei, Shanxi, Yunnan and other provinces. 、The quality of Sichuan pepper is good, and the output is high in Hebei and Shanxi. Sichuan pepper is a unique spice in China, ranking first among the thirteen spices of seasoning. It can be used in braised, stewed, side dishes, Sichuan pickles, chicken, duck, fish, sheep and beef dishes, etc. It can also be coarsely ground into powder and mixed with salt to make pepper salt for dipping.