Through analysis of 2011 Guangzhou city housing situation, this paper discusses the tendency of the per capita housing area. The equation of fitting the per capita housing area is Y = 7.1955 Ln (x) + 1.7867, speculated the housing need of Guangzhou (2012-2020), proposed the problems existing in the Guangzhou housing supply. Finally, this paper creates a path for long-term mechanism, according to current situation of housing problems and the future change of housing supply.