Ｉｎｔｅｒｎｅｔ自诞生之日起，网络信息污染问题便与之俱来，而且越来越严重，联网给世界各国带来巨大的经济和社会效益的同时，也带来了非常严峻的信息污染问题。通过跨国数据流，大量有害信息，如：垃圾信息、虚假信息、冗余过时信息、黄色淫秽信息、政治反动信息、种... Since the birth of the Internet, Internet information pollution problems have become more and more serious. The Internet has brought enormous economic and social benefits to all countries in the world and brought about a very serious problem of information pollution. Through multinational data stream, a large number of harmful information, such as: spam, false information, redundant obsolete information, yellow pornographic information, political reactionary information, species ...