  We study direct detection of dark matter in supersymmetric (SUSY) model where
most of SUSY particles have very high-scale masses beyond the weak scale. In
the scenario, Wino-like or Higgsino-like neutralino is a good candidate for the
dark matter in the universe. The neutralino scatters off nuclei by a
Higgs-boson exchange diagram and also electroweak loop diagrams. It is found
that the elastic-scattering cross section with nuclei is enhanced or suppressed
due to constructive or deconstructive interference among the diagrams. Such a
cross section is within the reach of future experiment in some parameter
region.
