PURPOSE: An upper jaw control unit and a dental articulator for jaw joint surgery are provided, which can secure accuracy of articulation through simulation. CONSTITUTION: An upper jaw control unit comprises: a fixed plate(320) fixed to an upper jaw supporting frame of a dental articulator; an angle control plate(351) which is placed at an interval from the lower part of the fixing plate; a front and rear angle modulator(352) controlling the front height of the angle control plate in the top of the upper jaw supporting frame; a left-right angle modulator(353) which is perpendicularly screwed to rear both sides of the angle control plate; a right and left controller(354) which is coupled to corresponded to the lower part of the fixing plate; a front and rear controller which slides forward and rearward; and a rotation controller controlling the rotation angle.
