Environmental intergenerational equity is one of the thinks of sustainable development. Based on the concept and signification of environmental intergenerational equity ,a model for judging environmental intergenerational equity is built and the environmental intergenerational equity degree and conflict degree are defined. The model is applied to judge the environmental intergenerational equity of 1980,1990 and 2000,the continuous three generations, in the contiguous areas on Shanxi, Shanxi and Inner Mongolia Autonomous. The results show the pollution environment is more and more worse, the intergenerational equity coefficient is 0.289 and conflict degree is 0.711 between 1980 and 1990,the intergeneration equity coefficient is 0.218 and conflict degree is 0.782 between 1990 and 2000.Thay are environmental inequity from former generation to next generation and the intergenerational conflict degree increase gradually. At last, building compensation base of intergenerational environment is the basal way to reach environmental intergenerational equity, then gives some measures and counterproposals for environmental intergenerational equity in the region.