Abstract:Taking Shapingba District of Chongqing city as the study area, by using datas in 2010 and 2012, land use change information has been gained. By using the theory of CA model of logistic regression, simulation study on land use change and urban expansion has been carried out. Combining with actual policies, development process and ecological environment impact have been analyzed and compared. It is showed that within a period of time in the future, the construction using land will continue to increase, while land resources will continue to decline due to urban construction.