  The supersymmetric one-loop contribution to the quark-lepton universality
violation in the low-energy charged current weak interactions is studied. It is
shown that the recent experimental data with the 1-$\sigma$ deviation from the
universality may be explained by the existence of the light sleptons
($<220$GeV) and relatively light chargino and neutralinos ($<600$GeV) with
significant gaugino components. The sign of the universality violation is
briefly discussed.
