BTeV has been approved for construction by Fermi Lab to study a wide spectrum of heavy-flavour physics. This includes systematic studies of CP violating phenomena in b- and c-hadron decays, studies of their rare decays and B0B0, Bs0Bs0 and D0D0 mixing. These studies are crucial to fully understand the origin of CP violation. The BTeV experiment takes advantage of the large number of b hadrons produced at the Tevatron and state-of-the-art technologies to select and record those events in an environment with large background. This paper presents the status of the detector and expected physics potential.