  We study the possibility to determine the supersymmetric (SUSY) contribution
to the muon anomalous magnetic dipole moment by using ILC measurements of the
properties of superparticles. Assuming that the contribution is as large as the
current discrepancy between the result of the Brookhaven E821 experiment and
the standard-model prediction, we discuss how and how accurately the SUSY
contribution can be reconstructed. We will show that, in a sample point, the
reconstruction can be performed with the accuracy of ~ 13 % with the
center-of-mass energy 500 GeV and the integrated luminosity ~ 500-1000 fb-1.
