The educational diversion policy refers to the different directions of talent training. It means that the school education system divides young students who have completed a basic education into several streams, so that they can receive different types of education respectively, so as to cultivate all kinds of talents needed for social development. Diversion is an important function of modern school education system and a two-way choice for society and individuals.

Whether the educational diversion is reasonable or not will affect the quantity and specifications of personnel training, employment, economic development and political stability. The time and frequency of educational diversion are related to a country's social productivity, economic development, social and professional division of labor, as well as the economic situation and learning situation of the educated.

In western capitalist countries, such as Britain, educational diversion generally starts from middle schools, including general grammar schools, vocational modern schools and technical schools. In the stage of higher education, there has been a second educational diversion, including academic comprehensive universities and vocational and technical colleges.

According to the requirements of social and economic development level and social professional division of labor in different regions of China on the cultural knowledge and technical level of workers at different levels, educational diversion in some regions began earlier, starting from junior high school, including ordinary junior high school and vocational junior high school, while educational diversion in most regions began from senior high school, including ordinary senior high school and vocational high school, vocational secondary school and technical school.