A wheel end surface detection and correction device, consisting of a stand, cylinders I, guide columns I, guide sleeves I, a fixed plate, a lifting frame I, guide rails I, guide rails II, a servo electric cylinder I, a translational frame, guide rails III, a lifting frame II, a dial indicator, a supporting plate, an expansion core, an expansion sleeve, a reference plate, a cylinder rod, a piston, a cylinder body, a left copying pressing block, a left pressing rod, a rotating ring, a left guide sleeve, a movable plate, a servo motor, servo electric push rods, a lifting plate, guide columns II, guide sleeves II, a left servo electric cylinder, a cylinder II, a right servo electric cylinder, a right guide sleeve, a right pressing rod, a right copying pressing block and a servo electric cylinder II, wherein the fixed plate is fixed on the stand; the four guide sleeves I are fixed on the fixed plate; the four guide columns I matched with the guide sleeves I are fixed below the lifting frame I; the two cylinders I are also fixed on the fixed plate, and the output ends of the two cylinders I are hinged with the bottom of the lifting frame I; two sides of the lifting frame I are connected with the stand through the guide rails I; the front and rear ends of the supporting plate are fixed on the stand; a detection system is that: the bottom end of the translational frame is mounted above the bottom of the lifting frame I through the guide rails II; the lifting frame II is mounted on the side surface of the translational frame through the guide rails III; the servo electric cylinder I is fixed on a bottom plate of the translational frame, and the output end of the servo electric cylinder I is connected with the lifting frame II; the dial indicator is mounted on the lifting frame II; the servo electric cylinder II is fixed above the bottom of the lifting frame I, and the output end of the servo electric cylinder II is connected with the translational frame; a customized cylinder is that: the reference plate is fixed below the cylinder body; the piston is matched with an inner hole of the cylinder body; the cylinder rod is connected with the piston; the expansion sleeve is fixed below the reference plate; the expansion core is fixed at the top end of the cylinder rod; the outer side of the expansion core is matched with the inner side of the expansion sleeve; the top end of the cylinder body is mounted below the movable plate through the rotating ring; the servo motor is fixed above the movable plate, and the output end of the servo motor is connected with the top end of the cylinder body; the upper ends of the three servo electric push rods are hinged with the lower end of the lifting plate, and the lower ends are hinged with the top end of the movable plate; the three servo electric push rods are uniformly distributed between the movable plate and the lifting plate; the four guide columns II are fixed above the lifting plate; the four guide sleeves II matched with the four guide columns II are fixed at the top end of the stand; the cylinder II is also fixed at the top end of the stand, and the output end of the cylinder II is hinged with the top end of the lifting plate; and a correction system is that: the left servo electric cylinder is fixed on the left side of the top end of the stand; the left guide sleeve is fixed below the left servo electric cylinder and is matched with the left pressing rod; the top end of the left pressing rod is connected with the output end of the left servo electric cylinder, and the left copying pressing block is fixed at the left end of the left pressing rod; the right servo electric cylinder is fixed on the right side of the top end of the stand; the right guide sleeve is fixed below the right servo electric cylinder and is matched with the right pressing rod; the top end of the right pressing rod is connected with the output end of the right servo electric cylinder; and the right copying pressing block is fixed at the lower end of the right pressing rod; a stopper is configured to initially locate a wheel in the center; the cylinder II is configured to enable the expansion sleeve to move down through guide columns II and to be matched with a wheel center hole; three servo electric push rods are configured to adjust a posture of the reference plate to cause the reference plate to be flatly fitted to a wheel flange surface; the cylinder rod is configured to pull the expansion core to tighten the wheel; the cylinder II is configured to lift the wheel, and the servo motor is configured to enable the wheel to rotate; the servo electric cylinder II is configured enable the dial indicator to be located below the end surface of a wheel rim of the wheel through guide rails II; the servo electric cylinder I is configured to enable the dial indicator to be in contact with the wheel end surface through guide rails III; at the moment, the end surface runout of the wheel is configured to be detected; after the detection is completed, cylinders I are configured to enable the lifting frame I to move down via guide columns I; meanwhile, the cylinder II is configured to enable the wheel end surface to be flatly fitted to the supporting plate; the right servo motor is configured to enable the right copying pressing block to be flatly fitted to the upper end surface of one side of the wheel through the right pressing rod, but no force is applied; and the left servo motor is configured to enable the left copying pressing block to over press the other side of the wheel through the left pressing rod to cause the lower end surface to move down, so as to achieve the aim of correcting the end surface.