"Combating pornography and illegal publications" is a technical term of cultural market management. It is a law enforcement activity and an important measure to maintain national cultural security and cultural market order. "Anti-vice" refers to the removal of obscene books and periodicals, audio-visual products, electronic publications, online pornographic information and other cultural wastes that endanger people's physical and mental health and pollute the social and cultural environment. "Illegal publications" refers to cracking down on illegal publications, that is, cracking down on publications that violate regulations, undermine social stability, endanger national security and incite ethnic division, pirated publications and other illegal publications.