Twelve-year compulsory education means that the compulsory education stage stipulated by the state is nine years, and it will be extended by three years to realize the complete education process from primary school to high school. The following are several aspects of the necessity of twelve-year compulsory education:

Improve national quality: Twelve-year compulsory education can help students master knowledge and skills more comprehensively and systematically, improve national cultural quality and scientific literacy, and lay a more solid foundation for national development.

Promote educational equity: Twelve-year compulsory education can promote educational equity, let more students enjoy better educational resources, narrow the gap between urban and rural areas, regions and the rich and the poor, and improve the universality and balance of education.

Enhance social competitiveness: Twelve-year compulsory education can improve the skills and knowledge level of the labor force, thus enhancing the competitiveness and innovation ability of society and providing better talent support for national economic development.

Cultivate good citizen quality: Twelve-year compulsory education can help students form good moral, humanistic and legal qualities, strengthen their knowledge and understanding of society, country and the world, and cultivate more responsible citizens.

Enhance employability: Twelve-year compulsory education can improve students' comprehensive quality and vocational skills, make students better adapt to social employment needs, increase employment opportunities, and provide more labor for individual and national development.