  LHC constraints on Higgs-portal WIMPs are studied. Scalar, vector and
anti-symmetric tensor fields are considered. They are assumed to be heavier
than a half of the Higgs boson mass. We investigate 8 TeV LHC results on
signatures of the vector boson fusion, mono-jet and associated production of
the $Z$ boson, which proceed via virtual exchange of the Higgs boson. We show
that Higgs-portal interactions of the vector and tensor WIMPs are constrained
to be less than 0.43 and 0.16, respectively, while those for the scalar are
very weak. Prospects of the 14 TeV LHC are also discussed.
