Abstract:Present meteorology evaluation of ecological quality has some difficul ty in practical use and satellite data are not used adequately. By using the 3S technology, the methods of extracting information of ecological quality indexes mainly by satellite data are studied, especially in extracting information on ve getation coverage index and soil degradation index. And these methods were appli ed for meteorology evaluation of ecological quality of Beijing in the second sea son in 2006. The evaluation results are satisfying and also show that the method s of extracting information on ecological quality indexes with satellite data ar e feasible and practical.