"Bullying the weak and fearing the hard" usually refers to the bullying and oppression of unequal power between people. It exists in society for a long time, including physical or verbal attacks, resistance and rejection in interpersonal communication, and may be similar to sexual harassment or ridicule, comments or ridicule on body parts, or insults and satires for personal reasons such as jealousy.

In 2002110/0, the Ministry of Education issued the Work Plan for Preventing Bullying among Primary and Secondary School Students, and launched a special campaign to prevent bullying among primary and secondary school students.

Generally speaking, bullying behavior has the following characteristics: boys and girls will have bullying behavior; From the students' self-reported research, it is found that boys are more likely to be bullied;

"bully" is a transliteration of the English word "bully", which means bullying the weak and bullying the weak. Chinese transliteration is also meaningful. Bullying is a kind of pure habitual aggression, intentional or unintentional, which usually occurs among students with asymmetric strength (physical strength, social strength, etc.). The more widely accepted definition of bullying is that of Norwegian scholar Dan Olweus: "A student is repeatedly influenced by the negative behavior of one or more students for a long time".

It can be seen that bullying is not an accidental event, but a long-term recurring event. Students who are usually bullied will be bullied repeatedly, not once. Bullying exists in many forms. Such as: violent bullying (physical bullying), verbal bullying (abuse, ridicule, malicious slander), social bullying (group exclusion, interpersonal opposition), cyber bullying (spreading rumors, slander and other attacks through mobile phone text messages, emails, blogs, BBS and other media).