  One CP--odd rephase-invariant phase appears in the chargino mass matrix in
the minimal Supersymmetric Standard Model. We investigate in detail the
phenomenological impacts of the CP-odd complex phase in the production of light
charginos in $e^+e^-$ annihilation. The values of the chargino masses and the
mixing angles, determining the size of the wino and higgsino components in the
chargino wave functions, are so sensitive to the CP-odd phase that the
constraints on the supersymmetric parameters based on the conventional
assumptions for the parameters are recommended to be re-evaluated including the
CP-odd phase.
