The utility model provides a braided wire straightening device, which belongs to the technical field of braided wire straightening and comprises a control cabinet. According to the electric push rod fixing device, under the arrangement of the first mounting plate, the supporting plate, the fixing plate and the transverse frames, a plurality of sets of electric push rods can be mounted and fixed, under the arrangement of the connecting plate, the transverse frames can be connected and fixed, under the arrangement of the second mounting plate, the mounting block, the stabilizing plate and the base, the fixing frame and the limiting frame can be mounted and fixed, and the electric push rod fixing device is convenient to use. Under the arrangement of an electric push rod, a fixing block and a limiting piece, the height of the limiting piece can be adjusted, then a braided wire can be limited, under the arrangement of an air cylinder, a sliding block, a rolling wheel, a fixing frame, an electric telescopic rod and a moving block, the braided wire can be clamped and straightened, and under the arrangement of a limiting rod and the fixing frame, the braided wire can be straightened. The vertical movement of the sliding block can be guaranteed, under the rotating arrangement of the rolling wheel, the braided wire can be prevented from being damaged in the straightening process, and the good straightening effect is achieved.