The invention discloses a scaffold fastener, and relates to the technical field of scaffolds. The scaffold fastener can rapidly install and dismantle a scaffold. According to the main technical scheme of the scaffold fastener, the scaffold fastener comprises a base, a pinch plate and a fixed part, wherein the base comprises a storing area, a connecting end and a fixed end, and the connecting end and the fixed end are arranged on the two sides of the storing area; one end of the pinch plate is rotatably connected to the connecting end, and the other end of the pinch plate extends towards the fixed end; the fixed part comprises a fixed shaft, a rotational piece, a fixed piece and a lock catch piece, the fixed end is provided with a through hole, and the fixed shaft penetrates through the through hole and is slidably connected to the base; one end of the fixed shaft is fixedly connected to the rotational piece, the other end of the fixed shaft is fixedly connected to the fixed piece, and the lock catch piece is fixedly connected to the fixed shaft; and a second end extends towards the direction of the fixed end, the fixed end is provided with a fixing side face, a fixing area is formed between a first side face and the fixing side face, and the other end of the pinch plate can be clamped into the fixing area. The scaffold fastener is mainly used for installing the scaffolds.