Special post teachers are a special policy of rural compulsory education in the western region implemented by the central government. Through public means, college graduates are allowed to teach in rural schools below the county level where the "two basics" are crucial, and college graduates are guided and encouraged to engage in rural compulsory education, and the supplementary mechanism for teachers in rural schools is innovated, so as to gradually solve the problems of insufficient teachers in rural schools and unreasonable structure, improve the overall quality of rural teachers and promote the balanced development of urban and rural education.