This study aims to determine the effect of Birate, Inflation, Indonesia Sharia Stock Index and Composite Stock Price Index on the aggregation of muḍārabah deposit at Bank Syariah period 2011-2015. This research is quantitative with data taken from the annual report of Sharia Commercial Bank in 2011-2015. The data used in this research is time series data taken from Sharia Public Bank as its population. This study uses multiple linear regression analysis using OLS (Ordinary Least Square) model. The result of the research shows that Birate, inflation, and composite stock price index have significant influence on the accumulation of muḍārabah deposit at Sharia (BUS), while Indonesian Sharia stock index does not give significant influence to the accumulation of muḍārabah deposit in Sharia (BUS) Bank
