There is no difference between cowpea and bean horn, they are the same crop with a difference in the name. The Chinese name for cowpea is cowpea, also known as longhorn bean, banded bean, etc. It is an annual vegetable belonging to the order Rosaceae, family Leguminosae, tribe Caulifera, genus Cowpea, species Cowpea, which is more adaptable, can be cultivated in the open field as well as in the protected area, and at the same time, it can also be produced on an annual basis and marketed in all seasons.