The shielding cover flatness detection packaging machine adopts a multi station turret structure, integrating feeding, flatness precision detection, appearance defect screening, defect sorting, and carrier packaging operations. Equipped with high-precision displacement sensors and vision systems, it accurately determines defects such as warping, deformation, and missing materials, and automatically diverts defective products. The vacuum suction nozzle smoothly transports workpieces, adapts to various metal shielding covers, occupies a compact area, and is manned by a single person, steadily improving the efficiency of shielding cover product testing and packaging.