  A review of supersymmetric dark matter in minimal supergravity unification
with R-parity invariance and with radiative breaking of the electro-weak
symmetry is given. The analysis shows the lightest neutralino is the LSP over
most of the parameter space of the supergravity model. The event rates in
neutralino- nucleus scattering in dark matter detectors are also discussed.It
is found that the event rates are sensititive to the constraint from the
$b\rightarrow s\gamma$ experiment.It is also found that the event rates are
sensitive to the constraints of relic density and in our analysis we have used
the accurate method for the computation of the neutralino relic density.
Finally,the effect of the new results on quark polarizabilities, from the data
of the Spin Muon Collaboration, on event rates is also discussed.The analysis
shows that the event rates for the Ge detectors and for other detectors which
use heavy targets are only negligibly affected.
