  The recent measurements by CLEO Collaboration for the inclusive J/Psi and
Psi(2S) production in Upsilon(1S) decay and our previous calculation are
analyzed. The J/Psi momentum spectrum and the production ratio of Psi(2S)
versus J/Psi favour Upsilon to J/Psi(Psi(2S)) + ccbar g as the dominant
contribution. We point out that the differences between the experimental data
and our previous results are mainly originated from the setting of the
parameter charm quark mass. We further suggest the associate strange particle
enhancement as a probe for the open charm particles in Upsilon to J/Psi
(Psi(2S)) + ccbar g.
