b-tagging at LHC

The review of the recent progress in the area of b-tagging studies at LHC is presented. Vertex b-tagging will be the major tool for the search for low mass Higgs both in the Standard Model scheme and in its supersymmetric extensions at LHC experiments. The simulation results indicate that the rejection of gluon and light quark jets of Rqg-jet = 50 with b-tagging efficiency ϵb-jet = 50% can be achieved at LHC experiments.