The goal of a research was to determine the efficiency of foreign direct investments (FDI) in Poland comparing to alternative forms of capital allocation. The analysis of Polish FDI according to economic activity and geographical zone was conducted. In 2000-2012 the inward position of FDI rose significantly due to a surge in equity capital and reinvested earnings as well as in other capital in form of various debt instruments. Generally the rate of return on FDI in Poland was higher than the Polish and US government bond yields that gave an evidence of a higher efficiency of FDI comparing to a low risk financial instruments.