Legal analysis: It depends, but it is illegal to open a cram school without permission. The Education Bureau clearly stipulates that in-service teachers can't make up lessons for students privately during the holidays, which means that they can't run cram schools during the summer vacation.

Legal basis: Article 75 of the Education Law of the People's Republic of China violates the relevant provisions of the state and establishes schools or other educational institutions, which shall be revoked by the education administrative department or other relevant administrative departments; Illegal income, confiscate the illegal income; The directly responsible person in charge and other directly responsible personnel shall be punished according to law.