Supernumerary junior high school art teachers refer to those who work as art teachers outside junior high schools. Usually, art training institutions or individuals sign contracts with schools and receive remuneration according to class hours. In contrast, the salary of art teachers in primary schools is usually paid directly by the school, and the salary level is relatively low. Therefore, from the perspective of salary, the salary of supernumerary junior high school art teachers is higher than that of primary school art teachers.