Haemostat for tooth extraction wound surface

The utility model provides a haemostat for a tooth extraction wound surface. The haemostat comprises gingival attachment plates (1), periodontal attachment plates (9), first movable buckles (3), a piston wall (5), a piston (6), second movable buckles (8) and a spring (7), the first movable buckles (3) and the piston wall (5) are connected with the gingival attachment plates (1), the piston (6) is arranged in the piston wall (5), the second movable buckles (8) and the spring (7) are connected with the periodontal attachment plates (9), and the spring (7) is connected with the piston (6). The haemostat is put in the oral cavity of a patient and can be used for automatic hemostasis by compression; meanwhile, hemostatics can be prevented from falling into the oral cavity of the patient. The haemostat is easy to process and convenient to manufacture and can be made of metal or resin.