Abstract: As a new literary genre,cyber literature has not only broken the monopolistic situation completely of which the printed literature occupied the literary field,but also shown a lot of aesthetic characteristics that the pleasant aesthetics of free writing,the vicarious aesthetics of virtual world and dynamic aesthetics of interactive reading and writing.Cyber literature has the created pattern,existed pattern,spread pattern,accepted pattern and value orientation which are different from those of printed literature.The revolution caused by the fourth media may change the pattern of literature wholly and even create a type of new literary sociology and literary aesthetics.