Based on the landuse status and the natural and socio-economic conditions of 40 districts and counties in Chongqing City from 1999 to 2006,the spatial-temporal variation of landuse economic efficiency of the districts and counties are analyzed by selecting evaluation indexes and using the factor analysis of multivariate statistics.Results show that the landuse economic efficiency in different districts and counties differs greatly.The districts and counties with better landuse economic efficiency are mostly in good economic development and they are the main urban area and districts within its economic radiation zone.The districts and counties with poor landuse economic efficiency are backward and they are mostly located in the relatively remote mountain area.Moreover,the difference is displaying a growing trend.The landuse economic efficiency in various districts and counties displays an improved trend.Number of districts and counties with high efficiency increased steadily.In the light of the results from analysis,the authors propose some suggestions and measures to enhance landuse economic efficiency.