A device for detecting mandibular opening and closing force and a stable state of applied force includes a jaw pad, a head fixing belt, a pressure sensor and a stop slider. The left and right ends of the chin pad respectively extend to the outside with connecting parts, and the top surface has a containing groove, the center of the bottom surface of the containing groove has a groove, and the side wall surface of the groove has a perforation. The head fixing strap is made of elastic material. It surrounds the head and extends downward from the left and right sides of the head. The strap can be combined with the connecting parts. The pressure sensor is arranged in the groove, and is connected to the signal collection system through the hole. The stop slider can be placed in the groove with its oblique side upward. Through the above, the lower jaw of the subject can be fixed in the receiving groove, and the oblique side of the stop block is close to the lower jaw of the subject for mandibular force detection.一種下頜張合力量與施力穩定狀態檢測裝置，包括有下頷墊、頭部固定帶、壓力感測器以及止滑塊。該下頷墊之左右兩端分別向外側延伸出連接部，且頂面具有容置槽，該容置槽底面中央處具有凹槽，該凹槽之側壁面具有穿孔。該頭部固定帶為彈性材質，其環繞頭部並自頭部的左右兩側向下延伸帶體，該帶體可與該等連接部結合。該壓力感測器設置於該凹槽，並經由該穿孔連接信號收集系統。止滑塊可放置於該凹槽，其斜側面向上。藉由上述，使受測者之下頜部可容置於該容置槽固定，且該止滑塊之斜側面緊靠受測者之下頜部，以進行下頜力量檢測。
