  A search for neutral Higgs bosons produced in association with b-quark(s) and
decaying into a pair of b-quarks is performed with the CMS detector at LHC. The
Higgs boson signal is expected to emerge as an excess in the mass spectrum of
two b-tagged jets. Dedicated triggers with on-line b-tagging in fully hadronic
events were developed specifically for this kind of analysis. Limits on the
cross section times branching fractions are derived model independently. The
result was interpreted in the Minimal Supersymmetric Model (MSSM). Upper limits
at $tan\beta$ are derived as a function of MA, the mass of the Higgs boson A.
In the analysis presented here data taken in 2011 at 7 TeV are used
corresponding to a total luminosity of $ L = 2.7 - 4.0 fb^{-1} $ for low and
medium Higgs boson masses, respectively.
