  We investigate the possibility of U(1)' mediation, leading to an effective
SUSY where the first two family sfermions are above 100 TeV but the third
family sfermions and the Higgs doublets are in the TeV region(or the light stop
case). The U(1)' gaugino, Zprimino, needs not to be at a TeV scale, but needs
to be somewhat lighter than the messenger scale. We consider two cases, one the
mediation is only through U(1)' and the other through U(1)' and the electroweak
hypercharge U(1)_Y. In the SUSY field theory framework, we calculate the
superpartner mass spectra for these two cases. We also point out that the
particle species needed for these mechanisms are already obtained from a
Z(12-I) orbifold compactification.
