  The physics potential of discovering and exploring supersymmetry at future
e^+e^- linear colliders is reviewed. Such colliders are planned to start to
operate at a center-of-mass energy of 500 GeV to 800 GeV, with a final energy
of about 2 TeV expected. They are ideal facilities for the discovery of
supersymmetric particles. High precision measurements of their properties and
interactions will help to uncover the mechanism of supersymmetry breaking and
will allow for tests of grand unification scenarios.
