The purpose of this study is to discuss the relationship between urbanization and urban land.Time serial analysis methods such as unit root test,co-integration test,error correction model,and Granger causality test were used to analyze the data of china from 1982 to 2011.The result shows that there was equilibrium between urbanization and urban land,and urbanization played a large role in urban land expansion because urban land would be sprawled by 1.79 percent if urbanization rate increased by 1 percent.Error correction model proved that 36.8 percent of deviation would be adjusted to equilibrium when urban land deviation from equilibrium happened,but urbanization couldn’t be adjusted little to the equilibrium.Granger causality test showed that there existed Granger causality between urbanization and urban land mutually in short term,but there only existed Granger cause from urbanization to urban land expansion in long time.Firstly,strategy of land-saved-based urbanization should be implemented,and land per capita should be strictly controlled in medium and small cities,counties and towns.Secondly,the supporting measures should be perfected to actively solve the peri-urbanization and steadily promote urban land acquisitions for city development.Thirdly,differential policies for controlling urban land expansion should be implemented in principle function regions.Finally,local official assessment mechanism should be reformed to crack the dependence on land finance of local governments.