This paper aims to analyze the effect of the scale of social fmancing on Chinese economy based on Shadow banking, so as to provide empirical some evidence for the study of economic development. This paper is divided into the part of introduction and four chapters. The introduction part mainly expounds the research background, purpose, significance of this paper, and summarize the foreign and china related research. Besides, The first chapter explains the theories and concepts, The second chapter mainly analyzes methods and innovations. In the third chapter, this paper makes empirical measurement. In the third chapter, this paper makes empirical measurement based on the monthly data from 2002 to 2014.The methods of Correlation test, ADF, Johansen cointegration test, Granger causality test. The fourth chapter is the conclusion and policy suggestion.The empirical results show that the reasonable growth of the scale of social fmancing based on shadow banking can promote the development of Chinese economy.