  In this talk, we will review the signatures of dark matter in two inert
triplet models. For the first model with the hypercharge Y=0, the dark matter
mass around 5.5 TeV is favored by both the WMAP data and the direct detection.
In contrast, for the second model of Y=2, it is excluded by the direct
detection experiments although dark matter with its mass around 2.8 TeV is
allowed by WMAP.
