Legal basis: Article 130 of the Law of People's Republic of China (PRC) on the Protection of Minors: (1) Units in close contact with minors refer to educational institutions such as schools and kindergartens; Off-campus training institutions; Minor rescue and protection institutions, child welfare institutions and other minor resettlement and rescue institutions; Infant care service institutions and early education service institutions; Off-campus trusteeship and temporary foster care institutions; Domestic service agencies; Medical institutions that provide medical services for minors; Other enterprises, institutions and social organizations responsible for the education, training, guardianship, rescue, nursing and medical treatment of minors. (2) Schools refer to ordinary primary and secondary schools, special education schools, secondary vocational schools and specialized schools. (3) Student bullying refers to the behavior that occurs between students, and one party intentionally or maliciously bullies and insults through physical means, language, internet, etc., causing personal injury, property loss or mental damage to the other party.