Abstract: The aesthetic beauty of alien arts depends on defamiliarization and segregation. The former attracts the attention of the public, while the latter leads the public to put aside the reality factors for a while and focus on the aesthetic experience. The aesthetic of alien arts is the basic of self-markedness and incorporation. In order to keep its aesthetic beauty, alien arts have to be "pioneer" constantly, which is especially obvious in the Internet age. Alien arts face the pressure that includes incorporation of business and ideology, and in the process of being incorporated, the new connotation will replace the original one.