Abstract:This paper firstly discusses the direct and indirect influence of rural financial development on agricultural science and technology progress in the aspect of theoretical, secondly to build a structural model, and based on the time series data from 1991~2014 in china to make an empirical analysis by granger causality. The results show that, exist both direct and indirect influence of rural financial development on agricultural science and technology progress, the indirect influence is mainly resulted from the subject of agricultural science and technology progress such as agricultural enterprise and peasant household. As for rural financial development promote agricultural science and technology progress, the most important thing is not only to development rural financial but to support agricultural enterprise and peasant household by financial ways.