The invention discloses an elastic surgical mallet, and belongs to the field of a dental appliance. The elastic surgical mallet comprises a mallet handle (1) and a mallet body positioned at the tail end of the mallet handle, and is characterized in that the mallet body comprises a first mallet head (2) and a second mallet head (3); the first mallet head and the second mallet head are connected through a spring (303); a movable rod (301) is arranged on the second mallet head; the tail end of the movable rod is provided with a movable block (302); a movable groove (201) is formed in the upper part of the first mallet head; a connecting passage is arranged at the bottom surface of the first hammer head and the movable groove; the movable rod is positioned in the connecting passage; the movable block is positioned in the movable groove; when the movable block is positioned in the bottom of the movable groove, the spring is in a compressed state. The elastic surgical mallet disclosed by the invention can sufficiently realize the rigidity and the elasticity; the goal of protecting the oral cavity is achieved.