Zanthoxylum bungeanum contains less amide. The hemp of Zanthoxylum bungeanum depends on the content of Zanthoxylum bungeanum, and the wild Zanthoxylum bungeanum collected on the mountain is hemp, because the content of Zanthoxylum bungeanum is less, the higher the content, the more hemp it is. The hemp degree of Zanthoxylum bungeanum is divided into four grades: super hemp, first grade, second grade and third grade, namely, special hemp, medium hemp and slight hemp.