Selecting variables based on theoretical analysis, using their data from 2009 to 2014 to set up a VAR model. We get that the scale of social finance can transmit monetary policy intentions better. Firstly, the scale of social finance changes with base currency and M2 in the same direction, but moves oppositely to inter-bank lending interest rate. Inter-bank lending interest rate impacts scale of social finance more quickly, and base currency needs more time to affect scale of social finance. Secondly, a inc...