  We consider the static, spherically symmetric black hole solutions in
bigravity theory for minimal model with a condition $f_{\mu \nu} = C^{2} g_{\mu
\nu}$ and evaluate the entropy for black holes. In this condition, we show that
there exists the Schwarzschild solution for $C^{2} = 1$, which is unique
consistent solution. We examine how the massive spin-2 field contributes and
affects to the Bekenstein-Hawking entropy corresponding to Einstein gravity. In
order to obtain the black hole entropy, we use a recently proposed approach
which use Virasoro algebra and central charge corresponding to surface term in
the gravitational action.
