The bolometric technique to detect the energy release of charged and uncharged particles inside a crystal absorber has been proposed since long time. Various detectors have been studied and realised in the last years showing the good performances which can be reached with low temperature calorimeters. The application of these types of detectors is particularly interesting to measure the neutrino mass or to search for rare events, such as Double Beta Decay or Dark Matter. In many cases these experiments have to be performed in deep underground locations to be shielded against cosmic rays. Present results, particularly regarding neutrinoless Double Beta Decay search of 130 Te by the Milano group, and future perspectives are discussed.