Abstract: Taking the municipal districts of Hohhot city as the study area, combined with the land use change data and social economic statistical data about the study area from 2009 to 2015, took some main factors for influence the structure optimization of city land use as the factors of optimal decision, respectively using GM（1,1） and GLP to estimate and construct the intervals of predictive value of the factors and inequality constraint equations, and respectively according to the interval prediction value of the limit to design two configuration optimization schemes of land use of the study area in 2020 and compared and optimized for it. The results show that compared to the optimization scheme of the interval of lower value, optimization scheme of the upper limit value in the efficiency of the whole land output and single type of land scale and combination was better than the optimization scheme of lower limit and current structure of land use structure.

Key words: land use, urban land, GLP, Hohhot