Using ecological footprint (EF)model,this article evaluates the ecological economic sustainability of Wuwei City.As a calculational result of biotic,manufactured and energetic re-sources consumption,the per capita EF is1.589423ha in1999.While the actual per capita bio-productive area,translated into a world average spatial productivity,is only0.856876ha,which implies an ecological deficit of per capita0.73254ha.Further,per capita EF and GDP of56countries and regions are analyzed and are proved to be of high correlation.The exponential model fits in well with their relationship,and it is of theoretical consistency.Applying this model,by the year2015,per capita ecological footprint of Wuwei will run up to2.60142ha,with ecological carrying capacity of only per capita1.0657ha.Per capita ecological deficit by then,will reach1.5357ha.