Equity premium is stock investment risk that it is necessary to consider to be included into free-risk return becomes return investor expectation. Equity premium inquirer occurred since it has been excessively extended to explain on capital asset pricing of Sharpe model. Equity premium explaining factor has been invented some variables, the following research will examine inflation rate variable, the fluctuation of rupiah exchange rate based on macroeconomics factor which has influence to equity premium. Sample using purposive sampling as much 213 stocks which have completed data during period January 2007 up to December 2015. Secondary Data was collected using documentation method through electronic media. The result of this analyze found that inflation rate has negative influence significantly not in line with the theory due to inflation rate in Indonesia both its amount and its fluctuation are inversely proportional to advanced countries such as USA, while the fluctuating rupiah exchange rate is depreciated by the significant positive influence to equity premium.