  Under the assumption of Abelian dominance in QCD, we have shown that chiral
condensate is locally present around each QCD monopole. The essence is that
either of charge or chirality of a quark is not conserved, when the low energy
massless quark collides with QCD monopole. In reality, the charge is conserved
so that the chirality is not conserved. Reviewing the presence of the local
chiral condensate, we show by using chiral anomaly that chiral non symmetric
quark pair production takes place when a quark is putted in a vacuum with
monopole condensation, while chiral symmetric pair production takes place in a
vacuum with no monopole condensation. Our results strongly indicate that the
chiral symmetry is broken by the monopole condensation.
