A lip opening and closing exercise device includes a first lip disposition unit, a corresponding second lip disposition unit situated at a lower side of the first lip disposition unit, a first outer pressing unit and a first inner pressing unit upwardly and respectively extended from both sides of the first lip disposition unit, a first abutting surface situated at an end of the first inner pressing unit for butting an inner upper part of the lips, a first elastic deformation space concavely formed on a side of the first inner pressing unit for deforming the first abutting surface when pressed, and a second outer pressing unit and a second inner pressing unit downwardly and respectively extended from both sides of the second lip disposition unit, so that after the lip opening and closing exercise device is mounted to the lips and the first abutting surface is pressed, a larger area is in contact with the upper inner part of the lips to provide a soft comfortable effect to the upper inner part of the lips.一種口唇開閉運動器係設置有第一嘴唇放置部,第一嘴唇放置部下方側設置有相對之第二嘴唇放置部,第一嘴唇放置部二側分別向上延伸有第一外抵持部與第一內抵持部,第一內抵持部末端設有用以供口唇內側頂部抵持之第一抵靠面,並於第一內抵持部側表面剖設有用以供第一抵靠面受壓後變形之第一彈性變形空間,而第二嘴唇放置部二側分別向下延伸有第二外抵持部以及第二內抵持部,藉以讓口唇開閉運動器置入口唇內後,俾使第一抵靠面受壓時以較大面積與口唇內側頂部相互接觸,以讓口唇內側頂部感受舒適及柔軟之功效。1...第一嘴唇放置部2...第一外抵持部3...第一內抵持部31...第一抵靠面32...第一彈性變形空間33...第一彈性肋4...第二嘴唇放置部5...第二外抵持部6...第二內抵持部7...連接部
