Abstract: Abstract：land use efficiency Varies a lot in different regions and at different times and in different periods.Based on the calculated data from 2007 to 2016,this research aims at investigating factors of urban land use efficiency as the research object,the method of DEA was used to calculate the land use efficiency of these cities in Jilin Province.Factors affecting urban land use efficiency were analyzed in across time and space.The result showed that:(1)The overall urban land use efficiency was relatively low in Jilin province,featuring a spatial distribution pattern of high efficiency in the central region and relatively low ones in western and eastern regions.Besides,the land use efficiency showed a downward trend Showed a decline;(2)Factors affecting the urban land use efficiency of these 9 cities:In terms of input,the number of employees in the secondary and tertiary industries was particularly redundant,and there was a relative surplus in fixed assets investment;In the aspect of output,insufficient fiscal revenue and income of urban residents had became important economic factors, The effect of ecological factors on land use efficiency began to appear during the research period.(3)Countermeasures:By rationally allocating labor resources while paying attention to improving the economic efficiency and ecological efficiency of land use is a realistic way to improve the land use efficiency of Jilin Province.