A high-precision wheel cap section burr removing device, having a frame, on which four pre-positioning guide rails are symmetrically mounted, wherein a sliding plate I and a sliding plate II are respectively mounted on the four pre-positioning guide rails and driven by pre-positioning cylinders, wherein two pre-positioning posts are mounted on the sliding plate I, two pre-positioning posts are also symmetrically mounted on the sliding plate II, and corner cylinder pressure claws are mounted on the four pre-positioning posts, wherein when the left and right pre-positioning cylinders drive the sliding plate I and the sliding plate II to move synchronously, the four pre-positioning posts can pre-position a wheel, wherein jacking cylinders and four guide posts are mounted at the bottom of the frame, the output ends of the cylinders are connected with a lifting table, a servo motor is mounted on the lifting table, the output end of the motor is connected with a rotating table via a shaft, a bearing and a bearing seat, wherein the rotating table can be driven to move up and down by extension and retraction of the jacking cylinders, and the servo motor can drive the rotating table to rotate, wherein adjusting guide rails are mounted on the rotating table, a left sliding table and a right sliding table are symmetrically mounted on the adjusting guide rails and connected by a gear rack, wherein an adjusting cylinder is fixed on the side of the rotating table, and the output end of the adjusting cylinder is connected with the left sliding table, wherein a left burr cutter and a right burr cutter are symmetrically mounted on the left sliding table and the right sliding table, the top of the left burr cutter is composed of a left precision positioning surface and a left cutting edge, and the top of the right burr cutter is composed of a right precision positioning surface and a right cutting edge, wherein the left precision positioning surface and the right precision positioning surface constitute a precision positioning system, and the left cutting edge and the right cutting edge constitute a cutter system. wherein two pre-positioning posts are mounted on the sliding plate I, two pre-positioning posts are also symmetrically mounted on the sliding plate II, and corner cylinder pressure claws are mounted on the four pre-positioning posts, wherein when the left and right pre-positioning cylinders drive the sliding plate I and the sliding plate II to move synchronously, the four pre-positioning posts can pre-position a wheel, wherein jacking cylinders and four guide posts are mounted at the bottom of the frame, the output ends of the cylinders are connected with a lifting table, a servo motor is mounted on the lifting table, the output end of the motor is connected with a rotating table via a shaft, a bearing and a bearing seat, wherein the rotating table can be driven to move up and down by extension and retraction of the jacking cylinders, and the servo motor can drive the rotating table to rotate, wherein adjusting guide rails are mounted on the rotating table, a left sliding table and a right sliding table are symmetrically mounted on the adjusting guide rails and connected by a gear rack, wherein an adjusting cylinder is fixed on the side of the rotating table, and the output end of the adjusting cylinder is connected with the left sliding table, wherein a left burr cutter and a right burr cutter are symmetrically mounted on the left sliding table and the right sliding table, the top of the left burr cutter is composed of a left precision positioning surface and a left cutting edge, and the top of the right burr cutter is composed of a right precision positioning surface and a right cutting edge, wherein the left precision positioning surface and the right precision positioning surface constitute a precision positioning system, and the left cutting edge and the right cutting edge constitute a cutter system.