The main focus of ATLAS b physics has traditionally been on the standard mo
del. In the last few years also the aspects of new physics in B-decays has
been addressed. Another new field of studies started recently is a beauty p
roduction. We give an overview of the older as well as more recent results.
After an introduction outlining selected trigger and detector performance
characteristics, we explain methods and goals of CP violation measurements
in decay channels of B-d(0) meson, physics of B-s(0) system and of rare dec
ays. Finally, the ATLAS program for beauty production measurements is prese
nted.