It is illegal for teachers to insult and discriminate against students. Discrimination against students by teachers will involve illegal acts, and children's personality or reputation will be affected. You can report the investigation to the public security or education department. Teachers should respect students' personalities and should not discriminate against them. Care for all students and respect their personality. Students should be treated equally, and students should not be discriminated against because of nationality, gender, disability, grades and other factors ... Never take simple and rude measures to insult or discriminate against students, or corporal punishment or corporal punishment in disguised form ... If it has a bad influence on insulting students or punishing students after education, it should bear legal responsibility according to law. The education administrative department of the people's government at or above the county level shall revoke the qualifications of teachers who have bad conduct, insult students and have a bad influence. You may not reapply within 5 years after being disqualified. According to Article 29 of Chapter 4 of the Compulsory Education Law of People's Republic of China (PRC), teachers should treat students equally, pay attention to their individual differences, teach students in accordance with their aptitude and promote their all-round development. Teachers should respect students' personality, and must not discriminate against students, and must not punish students with corporal punishment, corporal punishment in disguised form or other acts that insult their personal dignity, or infringe upon their legitimate rights and interests. It is not illegal for teachers to scold students, as long as the intention is not to discriminate against students, or to impose corporal punishment on students, corporal punishment in disguised form or other acts that insult personal dignity. On the contrary, it may involve breaking the law.

Teachers in any of the following circumstances shall be given administrative sanctions or dismissed by their schools, other educational institutions or educational administrative departments. Deliberately failing to complete the task of education and teaching, causing losses to education and teaching; Corporal punishment of students, who do not change after education; Bad conduct, insulting students, bad influence. If the circumstances are serious enough to constitute a crime, criminal responsibility shall be investigated according to law.

Legal basis: Article 37 of the Education Law states that if the conduct is bad, insulting students and influencing teachers, and the circumstances are serious enough to constitute a crime, criminal responsibility shall be investigated according to law.