Abstract:

With the rapid development of social network, a new socialized way is becoming more and more popular in our daily life, which creates a platform of expressing opinions for general netizen, and therefore, expression under social network takes on new unprecedented characteristics The paper analyzes them and research their causes and influences Based on present conditions of social networking service, characteristics of expression under social network are analyzed, and their causes and influences are discussed from the perspectives of language, subject and content, in order to promote healthy development of network expression

Key words: social network, expression, decentration