A kind of surgery surface wound protection dilator, includes a tubular protective sheath, at least one longitudinally adjusted part, an adjustment ring and a fixed ring. Wherein, tubular protective sheath is that flexible material is made and has a upper opening and a under shed, the longitudinally connected at least inner tube of inner circumferential surface. Longitudinally adjusted part passes through inner tube, and one end connects tubular protective sheath lower end and the other end stretches out tubular protective sheath upper end. Adjustment ring is that flexible material is made and connects upper opening, and the outer peripheral surface of adjustment ring is equipped with one and laterally adjusts part. Fixed ring is that elastic material is made and connects the under shed of tubular protective sheath. Thereby, medical staff can hold one end that longitudinally adjusted part stretches out tubular protective sheath upper end on the other hand, and the other hand, which pushes down on the transposition domain, can be adjusted the longitudinal length of Wound protection dilator, therefore only one be needed to can be operated, and using upper relatively simple and conveniently.一種手術表面傷口用保護撐開器，包含一管狀保護套、至少一縱向調整件、一調整環以及一固定環。其中，管狀保護套為軟性材料製成並具有一上開口與一下開口，其內周面縱向連接至少一內管。縱向調整件穿過內管，一端連接管狀保護套下端且另一端伸出管狀保護套上端。調整環為軟性材料製成並連接上開口，調整環的外周面環設有一橫向調整件。固定環為彈性材料製成且連接管狀保護套之下開口。藉此，醫護人員可以一手拉住縱向調整件伸出管狀保護套上端的一端，另一手向下推移調整環即可調整傷口保護撐開器的縱向長度，因此僅需單人即可操作，並且使用上較為簡單且方便。
