: The use of beta measuring systematic risk in both practice and in research, they showed inconsistent results. This occurs due to inaccuracies in estimating the beta and the differences in beta measurement time. The time variation and instability beta loophole to do research and look for relationships outside factors that can affect it. This study aims to determine the effect of macro-economic and company fundamentals to beta stocks. The study population was all issuers included in the mining industry in 2010-2014. The sampling technique used purposive sampling method and produces 28 issuers that qualify as sample. The analytical method used in this research is multiple linear regression analysis. The results of analysis that simultaneously macroeconomic and fundamentals company variables significantly influence the company's stock beta. In partial inflation, CR significant negative effect on beta. While the ROA and ROE significant positive effect on beta. Exchange rates Rupiah/USD and DER no significant positive effect on beta.