The effective supersymmetric theory (ESUSY) with R parity conservation cann
ot give a large anomalous magnetic moment of mu. It is pointed out that the
flavor conservation, and a large (g - 2)(mu) within the experimental limit
s are achievable in the ESUSY with R parity violating couplings involving t
he third generation superparticles. (C) 2001 Elsevier Science B.V. All righ
ts reserved.