  The complete QCD corrections to the scalar top quark pair production via
$\gamma \gamma$ fusion in parent $e^{+}e^{-}$ collider are calculated in the
Supersymmetric Model. The various origins of corrections are discussed. We find
that the correction due to gluino exchange is smaller than that due to
conventional gluonic contribution, and the contribution due to squark quartic
interactions is much smaller. Moreover, the dependences of the corrections on
the masses and the mixing angle of the supersymmetric particles are also
investigated.
