The main differences between crime and illegality are as follows: 1. The nature is different: illegality is not necessarily a crime, and crime must be illegal. 2. Different concepts: illegality is an act in violation of the provisions of laws and regulations, which results in the destruction of the social relations and social order protected by law and should bear legal responsibility according to law. Crime, which is more serious than illegality, is an act that violates the provisions of the law, causes damage to the social relations and social order protected by the law, has serious social harm, and should bear legal responsibility. 3. Different punishment methods: illegal punishment can be warning, administrative detention, fine, revocation of certificates, etc. The punishment for crimes generally includes criminal detention, public surveillance, imprisonment and death penalty, and can also include fines, deprivation of political rights and confiscation of property.
 Legal basis
 Article 13 of the Criminal Law of the People's Republic of China [Concept of crime] All activities that endanger national sovereignty, territorial integrity and security, split the country, subvert the power of the people's democratic dictatorship, overthrow the socialist system, undermine social and economic order, infringe on state-owned property or property collectively owned by the working people, and infringe on property privately owned by citizens, Violations of citizens' rights of the person, democratic rights and other rights, as well as other acts endangering society, which should be punished according to law, are crimes, but if the circumstances are obviously minor and the harm is not serious, they are not considered crimes.