  The instanton effects on the charmonium spectrum is discussed in the
framework of nonrelativistic potential model. The results from constituent
quark model without inclusion of instanton effects is compared with the results
for `the potential from constituent quark model + the contribution from the
instanton liquid model'. We consider two models with the corresponding
instanton potentials and discuss their relevance to explanations of the origin
phenomenological parameters used in the nonrelativistic potential models. We
also present the universal instanton potential in the parametrized form which
can be useful in practical calculations.
