The utility model provides a corrosion resistant plate flattening device, include the support, roll roller and leading wheel, connect the oil pump and provide power through the oil pump on rolling the roller, the quantity that rolls the roller is the even number, and every group rolls the setting of roller longitudinal symmetry and moves through connecting axle and support shaft and is connected, the quantity of leading wheel is the even number, and every leading wheel bilateral symmetry of group sets up the transmission direction that is used for the guide to wait to flatten corrosion resistant plate, flattening device design benefit, simple structure can flatten the corrosion resistant plate after convoluteing through rolling the roller fast, and setting up of regulation pole is feasible but device wide application in the corrosion resistant plate of different thickness has stronger market competition.