Sharing exists since the existence of human society.But in the present era，the quality and quantity of sharing changes tremendously，evolving from a behavior and a thinking mode to a trend of thought，which is driven by the emergence of the new media with the internet as its core.This paper analyzes on the reconstruction and extension of the concept sharing and divides the phenomenon into sharing 1.0，sharing 2.0，sharing 3.0 in the new media era.Finally，it analyzes the evolution of sharing logic in the new media environment.