  It is shown in a systematic way that the instanton dilute model can be
combined with the global colour symmetry model to form a new nonperturbative
QCD model. Based on the quark propagator derived in the instanton dilute liquid
approximation, the quark condensate $<\bar{q}q>$, the mixed quark gluon
condensate $g_{s}<\bar{q}G_{\mu\nu}\sigma^{\mu\nu}q>$, the four quark
condensate $<|bar{q}\Gamma q\bar{q}\Gamma q>$ and tensor, pion vacuum
susceptibilities have been calculated at the mean field level in the framework
of the new nonperturbative QCD model. The numerical results are compatible with
the values obtained within other nonperturbative approaches. The calculated
masses and decay constants of $\pi$ and $\sigma$ mesons are also close to the
experimental values.
