A cold/hot compressor therapy device includes a contact module, a heating/cooling module and a housing module. The contact module includes a contact wall to be in contact with a user, and a surrounding wall extending from the contact wall, cooperating with the contact wall to define an accommodating space, and having an annular flange. The heating/cooling module is disposed in the accommodating space to contact the contact wall and is operable to absorb or to provide heat. The housing module includes a bottom wall and a limiting wall. The contact module projects outwardly of the housing module through the bottom wall. The annular flange is movable toward and away from the contact wall so that the contact module is movable toward and away from the bottom wall.