1. It is illegal to have a school holiday in Tomb-Sweeping Day. Students are not laborers and are not supervised. Teachers can calculate overtime pay. If the school doesn't pay, they can complain to the labor bureau. In addition, students are citizens of China people, so if it is illegal to take a day off, the school can complain to the local education authorities.

2. Legal basis: Article 33 of the Law of People's Republic of China (PRC) on the Protection of Minors.

Schools should cooperate with the parents or other guardians of underage students to reasonably arrange their study time and ensure their time for rest, entertainment and physical exercise.

Schools shall not occupy national statutory holidays, rest days and winter and summer vacations, and organize underage students in compulsory education to make up lessons collectively to increase their learning burden.

Kindergartens and off-campus training institutions shall not conduct primary school curriculum education for preschool minors.

Second, how to deal with students' holidays?

Students should be treated in the following ways:

1, students can complain to the local education department or other government functional departments;

2. Students can call the local complaint telephone number to report the situation to the Education Bureau;

3. Students can log in to official website, the local education bureau, to make online complaints;

Students can also write letters to complain.