1. Improve education level: With the development of society, it is an inevitable development trend to extend the compulsory education period to 12 years in order to cultivate more useful talents, improve the development level of the whole country and society, and comprehensively promote the education promotion system.

2. Conforming to international education standards: Many developed countries in the world have adopted the compulsory education system of 12, which further promoted the promotion of compulsory education in China.

3. Extend education time: The increase of study time can fully display students' potential and promote their all-round development.

4. Adapt to the employment demand: the social demand for talents has changed from "knowledge-based" to "innovative". Extending the academic system can provide more employment and entrepreneurship opportunities for students, train more talents and further improve the core competitiveness of countries and regions.