  Vector boson fusion (VBF) processes at the Large Hadron Collider (LHC)
provide a unique opportunity to search for new physics with electroweak
couplings. A feasibility study for the search of supersymmetric dark matter in
the final state of two VBF jets and large missing transverse energy is
presented at 14 TeV. Prospects for determining the dark matter relic density
are studied for the cases of Wino and Bino-Higgsino dark matter. The LHC could
probe Wino dark matter with mass up to approximately 600 GeV with a luminosity
of 1000 fb$^{-1}$.
