  In this paper we show that since we have not observed quarks and gluons
outside the hadron due to the confinement of quarks and gluons inside the
hadron, the boundary surface term in QCD is at the finite distance which is at
the surface of the finite size hadron. Since the boundary surface is at the
finite distance we find that the boundary surface term in QCD is non-zero
irrespective of the form of the $r$ dependence of the gluon field ${\hat
A}_\mu^a(t,r)$ and the $r$ dependence of the quark field ${\hat \psi}_i(t,r)$
where $a=1,...,8$ and $i=1,2,3$ are the color indices. We show that this is
consistent with the fact that the cluster decomposition property fails in QCD
due to confinement.
