Many scholars have studied the influence of the single variable to the stock market. In this paper, regression analysis method and Econometrics software Eviews 6.0 are used to solve the problem. Through analyzing the inner relationship among stock trading volume, money supply, interbank lending rates, and consumer confidence index, this paper attempts to establish a multiple regression equation and eliminate the problems of multicollinearity, autocorrelation and heteroscedasticity at the same time. The empirical analysis proves the model has certain rationality which can provide the basis for investors on stock investment.