The present invention relates to a surgical traction device and, more specifically, to a surgical traction device, in which a surgical incision site is expanded to allow a surgical tool to be easily inserted in a state, in which the epidermis is incised for surgical operation, and an expansion part having elasticity is formed into a cylindrical shape and held on a fixing part at the upper portion thereof so as to maintain the incision site in an expanded state. According to the present invention, the expansion part made of a material with elasticity can be inserted in the incision site so as to form a space for surgical operation and the expansion part can be easily attached to or separated from the fixing part so that it is easy to change the position of the traction device or remove the traction device during surgery.本發明提供一種外科手術用牽開器，更具體地提供一種如下的外科手術用牽開器，為了進行外科手術，在切開表皮的狀態下，擴張切口部位而使手術工具容易進入，將具有彈性的擴張部位形成為圓筒形，而掛卡於上面部分的固定部，從而保持切口部位擴張的狀態。本發明具有如下效果，由具有彈性的材料製造的擴張部插入於切口部位，形成用於外科手術的空間，並且擴張部容易與固定部結合或分離，在手術中容易變更位置或去除牽開器。
