The utility model discloses a connecting apparatus for installing warming plate to wall by means of dry hanging comprising a keel which is connected to the wall and a fastener that is connected to the warming plate, wherein the keel is provided with an angle component with two decks intersected, the angel component including a deck parallel to the wall, the deck being disposed at the end of the keel farthest from the wall; wherein the fastener is provided with an angle area which is in anastomosis with the angle component and is fixedly connected to the angle component. The fastener and the angle structure of the keel constituting a step part, which imposes a supporting force in the step structure from all directions on the warming plate. Such supporting structure has a large bearing face, a symmetrical stable structure. The dry hanging connecting apparatus has the advantages of simple structure, convenient processing and usage, good anti force from outside and corrosion, higher endurance, and good thermal insulation and decorative effect. The utility model give even and stable bearing to the warming plate and each connecting pieces after installation.