A kind of bone board fixer is suitable for a strip bone plate. The strip bone plate has a plurality of along the spaced bone plate screw hole of strip bone plate length direction. The bone board fixer includes an at least bolt and an at least nut. The threaded shank that the bolt extends with a head and one from the head. The one of them of the threaded shank break-through of the bolt equal bone plates screw hole. The threaded shank screw lock of the nut and the bolt. The corresponding nut in the head of the bolt arrives close to the two sides up and down of the sandwiched what strip bone plate respectively and covers the periphery of the bone plate screw hole of correspondence, is deformed so that the strip bone plate can avoid the grade bone plates screw hole when bending.一種骨板固定裝置，適用於一長條狀骨板。該長條狀骨板具有複數個沿該長條狀骨板長度方向間隔排列的骨板螺孔。該骨板固定裝置包含至少一螺栓以及至少一螺帽。該螺栓具有一頭部以及一自該頭部延伸的螺桿部。該螺栓的該螺桿部穿通該等骨板螺孔的其中一者。該螺帽與該螺栓的該螺桿部螺鎖。該螺栓的頭部與其對應的螺帽分別緊抵地夾設於該長條狀骨板的上下兩側且覆蓋對應之骨板螺孔的周緣，使得該長條狀骨板在彎折時可避免該等骨板螺孔產生變形。
