Abstract: Through multidimensional focus on the network quasi-idioms, it is found that they are largely in line with the Chinese linguistic mechanism The Post-80s and Post-90s, as the main part of the Internet users, their psychological features especially the constructive postmodernism promote the popularity of network quasi-idioms, and they have an interactive relationship with the culture, showing the "Three Living" condition of Internet language life The network quasi-idioms would have suffered survival of the fittest under the mechanism of language rules The general norm is to be beneficial to communication and a constructive norm should be chosen: having humanistic concern and not losing the sense of social responsibility and cultural inheritance’s mission Their developing tendency in future is cold, popular, reviving, or newly coined with a cluster-type

Key words: network new idiom, the small triangle theory, social culture, pragmatic psychology, postmodernism