Teachers' function is the function and efficiency of teachers' profession. The practical role of teachers in talent training. It can be summarized as follows: (1) Disseminating and transmitting human scientific and cultural knowledge to make it continue and develop; (2) To develop students' intelligence and physical strength and cultivate students' good ideological and moral quality by imparting scientific and cultural knowledge and skills according to the laws of education and the laws and characteristics of teenagers' physical and mental development;

(3) Disseminating social thoughts, developing and creating new scientific and cultural knowledge, and promoting all-round social progress; (4) serving the society extensively.