  Measurement of the Gamma(h -> gamma gamma)Br(h -> b bbar) at the Photon
Collider at TESLA is studied for the Standard Model Higgs boson with mass of
120 to 160 GeV. The NLO estimation of background, analysis of overlaying
events, realistic b-tagging and corrections for escaping neutrinos were
performed. We find that for M_h = 120-160 GeV the Gamma(h -> gamma gamma)Br(h
-> b bbar) can be measured with a statistical accuracy of 2-7% after one year
of the Photon Collider running.
