Surgical wound retractor convenient to install and operate

The invention provides a surgical wound retractor convenient to install and operate. The surgical wound retractor comprises a base; a mechanical arm extending out of the base; a fixed mount fixed to the mechanical arm and having a slideway arranged in the fixed mount; a plurality of middle shafts movably arranged in the slideway; wire retractors fixed at the corresponding ends, extending out of the slideway, of the middle shafts; and locking buckles arranged on the corresponding middle shafts and used for fixing the middle shafts to the slideway and preventing the middle shafts from sliding. When the surgical wound retractor is used, the position and the depth of the wire retractors can be conveniently adjusted by adjusting the mechanical arm, and a wound can be conveniently and integrallyexpanded to facilitate an operation. In the operation process, due to the fact that the overall structure is small and the number of shielded parts is small, the operation space is larger and clearerto facilitate an operatio