Performance of the ATLAS tau trigger during 2011 data taking period

Many models for physics Beyond the Standard Model predict an increased production rate for tau leptons. The tau leptons therefore play an important role in searches for new physics at the LHC. By triggering on the hadronic decays of tau leptons, the discovery power of ATLAS can be greatly enhanced for many Beyond the Standard Model searches. In this contribution we present a brief description of the ATLAS tau trigger system and demonstrate its robustness and reliability during 2011.