Legal analysis: Is it reasonable and legal for vocational school students to be assigned to work in factories and not to give diplomas if they don't work? This is absolutely illegal. No matter what degree students have, even students in technical secondary schools can arrange internships in factories. Even if students in vocational schools are willing to work, they should be issued graduation certificates, because work is only a channel for students to realize their skills, and it does not mean that they must work.

Legal basis: Article 3 of People's Republic of China (PRC) Compulsory Education Law Compulsory education must implement the national education policy, implement quality education, improve the quality of education, make school-age children and adolescents develop in an all-round way in morality, intelligence and physique, and lay the foundation for cultivating socialist builders and successors with ideals, morality, culture and discipline.