"Gentrification" is a new trend gradually emerged during urban renewal in China. On the one hand, it promotes the improvement of urban living environment and public services; on the other hand, it intensifies the regional barriers between the "gentleman area" and the "slum" and aggravates the division of social class. Therefore, it is necessary to pay much more attention to the negative effects led by "gentrification" during urban renewal, and to put forward better and effective methods that can overcome the negative effects of gentrification, so as to ensure social equity and promote social development.