  We are considering the modifications of gluon properties in Instanton Liquid
Model (ILM) for the QCD vacuum. Re-scattering of a gluons on an instantons
leads to the dynamical momentum-dependent gluon mass $M_g(q).$ First, we
considered scalar "gluon", since there are no zero-modes problem and found its
dynamical mass $M_s(q)$. At the typical phenomenological values of the average
instanton size $\rho=1/3\,\,fm$ and average inter-instanton distance $R=1\,\,
fm$ we got $M_s(0)=256\,\,MeV$. Further, we extended this approach to the real
vector gluon with careful consideration of zero-modes and got
$M^2_g(q)=2M^2_s(q).$ This modification of the gluon in the instanton media
might be important for the heavy quarkonium physics at least.
