  The $0^{++}$ glueball mass is analyzed in the QCD sum rules. We show that in
order to determine the $0^{++}$ glueball mass by using the QCD sum rules
method, it is necessary to clarify the following three ingredients: (1) to
choose the appropriate moment with acceptable parameters which satisfy all of
the criteria; (2) to take account into the radiative corrections; (3) to
estimate an additional contribution to the glueball mass from the lowest lying
${\bar q}q$ resonance. We conclude that it is the key point to choose suitable
moments to determine the $0^{++}$ glueball mass, the radiative corrections do
not affect it sensitively and the composite resonance have a little effect on
it.
