Abstract: Coordinating the relationship between economic growth and land development is a key to improving the quality of economic growth as well as sustainable city.To explore spatial-temporal coupling characteristics of urban land expansion and economic growth, this paper adopts methods of Tapio decoupling index and the shift of gravity center to measure the spatial coupling relationship. Meanwhile, an econometric model is employed to test the influence of socioeconomic factors on urban land expansion. Results show that both economy and urban land area continue to grow. Urban land area of the central and western regions presents more significant increase. Gravity centers of urban land and economy shift to southwest gradually. However, spatial coupling relationship between economic growth and urban land expansion is gradually weakening. The decoupling condition continues to deteriorate. The distribution patterns of decoupling relationship changes significantly. The decoupling condition of the eastern region is generally improved. Social and economic factors are key drivers of urban land expansion. Factors of policy and industrial agglomeration also prompt urban expansion. Control of urban land expansion in the central and western regions should be further strengthened in the future. For the eastern region, a convergence of industry and land-use transformation needs to be sought and pursue a smart growth.