A submersible concealed type hinge quick-detaching structure comprises a hinge cup and a hinge arm which are connected through a link mechanism; the hinge arm is installed in a groove of a board through an arm cup, and a quick-detaching device is arranged between the hinge arm and the arm cup; and the quick-detaching device comprises a mounting groove formed in the arm cup, a plurality of elasticclamping pieces protrude towards the inside of the mounting groove from the side wall of the mounting groove, a mounting base is installed below the elastic clamping pieces in a left-right sliding mode, a drive base is further arranged in the mounting groove and hinged to the arm cup and the mounting base through a first hinge pin and a second hinge pin separately, and the mounting base can be pushed to slide left and right in the mounting groove by pressing the drive base. In the submersible concealed type hinge quick-detaching structure according to the scheme, a hinge is installed with therear portion inserted and the front portion buckled, so that one side of the hinge cup is installed in an upwarping mode when the hinge is assembled, a collision between the hinge cup and a cabinet isavoided accordingly, and assembly efficiency can be improved advantageously.