The validity of the labor contract signed by the employer and the students has always been controversial. In practice, there are both the validity of labor contracts recognized by the court and the validity of labor contracts not recognized by the court.
Relevant legal basis: Article 12 of the Opinions on Several Issues Concerning the Implementation of the Labor Law of People's Republic of China (PRC) stipulates that students' work-study programs in their spare time are not regarded as employment, and labor contracts may not be signed if they have not established labor relations.