  We consider a holographic model of QCD at finite temperature with nonzero
chemical potentials conjugate to $R$-charge densities. A critical surface of
the confinement-deconfinement phase transition is shown for five-dimensional
charged black hole solution given by Behrnd, Cveti\v{c} and Sabra. On a special
section of the parameter space, we find an critical curve being similar to the
one expected in QCD. We calculate meson spectra and decay constants in the
confinement phase of this section to see their temperature and chemical
potential dependences. We could assure generalized GellMann-Oakes-Renner
relation and the reduction of pion velocity near the critical point.
