Urbanization has greatly changed the nature of the urban underlying surface,which may increase the probability and intensity of haze weather.Using Landsat-7 ETM+and HJ-1A satellite multispectral remote sensing data,land use characteristics in Wuhan in 2002 and 2012 were analyzed by manual interpretation,and the land use planning map of Wuhan city was digitized and scaled.According to the typical gray haze weather process observed in Wuhan,different land types (history,present situation,and future) were simulated using the WRF-NAQPMS air quality numerical model.Simultaneously,the variations of the atmospheric wind field,temperature field,and concentration field of the main atmospheric pollutant in different situations were assessed,and the influence of the cushion on the haze weather was analyzed.The results provide a scientific basis for perfecting urban land planning and construction from the viewpoint of prevention and mitigation of gray haze weather.