The invention relates to the technical field of medical devices, in particular to a neurosurgical retractor fixing device, comprising a fixing plate, a fixing bolt, a magnet plate, a rectangular plate, a drawer, a transverse partition plate, a longitudinal partition plate, a micro electric push rod, a connecting plate, a connecting piece, a cross rod, a mounting rod, a connecting rod, an outer cylinder, an inner cylinder and a hook. The middle part of the upper end face of the rectangular plate is vertically provided with a miniature electric push rod, the free end part of the inner cylinder is fixedly provided with a spring, and the free end part of the spring is connected with a hook. Through the cooperation of the fixing bolt and the magnet plate, the retractor fixing device can be tightly fixed on the bed side of the hospital bed, the purpose of fixing the retractor is realized, and the height value of the hook can be adjusted by adjusting the extension of the electric push rod, and the rotary connecting piece can achieve the purpose of selecting the hook, which is convenient for medical personnel to use and convenient to operate, and reduces the working difficulty of the medical personnel; The invention can also be used by two patients at the same time, and the working efficiency of the medical personnel is improved.