This study presents models of seismic tomography under the Baikal Rift Zone (BRZ), obtained from the latest seismological data recorded in the period from 1994 to 2016. 3D models of the deep structure of the BRZ were built to a depth of 60 km using the local seismic tomography algorithm. All models were subjected to thorough verification and synthetic modeling. The received interpretations of the features of the deep structure of the BRZ are discussed on the basis of modern ideas about the geological structure of the region and its geodynamics.