  The NuTeV Collaboration reported a value of $\sin^{2}\theta_{w}$ measured in
neutrino-nucleon deep inelastic scattering, and found that the value is three
standard deviations from the world average value of other electroweak
measurements. If this result cannot be explained within conventional physics,
it must imply some novel physics beyond the standard model. We report the
correction from the asymmetric strange-antistrange sea by using both the
light-cone baryon-meson fluctuation model and the chiral quark model, and show
that a significant part of the NuTeV anomaly can be explained by the
strange-antistrange asymmetry.
