ATLAS heavy flavor result and future plan of measurements

Heavy Flavor Physics is one of the topics covered by ATLAS experiment research programme. Heavy mesons and quarkonia states are produced at the LHC with large cross sections, and this allows both to test theoretical predictions for production mechanisms and polarization states and to evaluate detector performance. In this talk the results obtained in the B-Physics sector with 7TeV p-p collision data will be presented: J/Ψ cross section measurement and non-prompt to prompt ratio, Y observation, first signals of D-mesons and observation of B± → J/ψ Κ±. Crucial to all of these measurements have been the performance of the muon triggers and the offline muon reconstruction and identification, as well as the inner detector performance and tracking. Moroever, latest result using Heavy-Ion collision data will be shown. Finally, the mid and long term perspectives for higher luminosity studies are presented.