Margin transaction in the securities market is an important modern trading system, improving the market allocation of resources function and playing an indispensable role. with the share reform of the basic successful completion , China's security market is ushering the real "Full Circulation" era, and the introduction of margin transaction is put on the agenda.This paper first analyzes three basic patterns of comparative, in light of China's specific market environment, the legal environment and the credit environment; and brings up the point that we should set up securities and financial companies to realize the transfer of funds and securities intermediation. Next is the main part of the article: primarily through qualitative and quantitative analysis of the method of combining to explore and predict margin transaction may impact on the security market, including the impact on the macro and micro aspects, the macro aspects of the entire security market are credit expansion, the impact of market volatility, the micro aspects of the impact is about micro-participants; Finally, the paper analyzes risk control issues of margin transaction ,at the same time, puts forward some modification to perfect and related law laws and also to strengthen the policy suggestion for taking charge of. |