Abstract: This paper focuses on the "clean water, clean air, soil improvement" three themes, with the overall requirements of the rural ecological civilization construction project and the actual situation of the capital , in accordance with the closed chain of monitoring, evaluation, management and evaluation of agricultural ecological environment, according with the agricultural ecological environment in Beijing city , index system of quantitative quality evaluation are constructed based on existing research results,.This system mainly includes 5 categories of routine monitoring and evaluation index, 23 governance and evaluation index of 3 categories and 8 types, and the corresponding standard and model. Based on the index system, using the model, remote sensing, geographic information system technology, designing and developing the information system of agricultural ecological environment .The core function of this system are data monitoring, quality evaluation and treatment planning, then realizing the quantitative evaluation of agricultural ecological environment in Beijing City, and unified evaluation standard data source.In particular, it breaks through the problem of large scale quantitative association evaluation, and has a high ability of intelligent matching of evaluation model and the ability. This will make an important contribution to the quantitative evaluation of agricultural ecological environment, and provide quantitative basis for the formulation of important policies of ecological agriculture environmental monitoring, management, planning and so on in Beijing.