  Motivated from the recent results of neutrino oscillation experiment, we
investigated lepton flavor violating (LFV) processes in a SU(5) supersymmetric
grand unified theory with right-handed neutrino. The current experimental upper
bound for $\mu \to e\gamma$ process gives already some constraint on the model.
Correlation between $\mu \to e \gamma$ and the SUSY contribution to the muon
anomalous magnetic moment is also discussed. Future LFV experiments will give
considerable impacts on this type of SUSY GUT models equipped with seesaw
neutrino mass generation.
