  Supersymmetric contributions to the neutron electric dipole moment (EDM) are
studied taking account of the flavor changing interactions. We found that the
gluino contribution is sensitive to the flavor changing interaction.
Enhancement of neutron EDM via flavor mixing effects is possible when the
squark mass difference between the different generations is sizable. As an
example, the results of the SUSY SU(5) GUT with right-handed neutrinos are
briefly discussed.
