The invention discloses a pallet cargo packaging device. The pallet cargo packaging device comprises a screen cloth component, an insert buckle component, a mounting component and a catch device and further comprises a storage device, the screen cloth component comprises a cloth piece and a screen piece connected with the right side of the cloth piece, the insert buckle component comprises an insert buckle, an insert box, a movable shaft, an insert buckle torsion spring, a button, a steel wire rope of the insert buckle and a steel wire rope chuck, the mounting component comprises a mounting rod and a connecting handle, the catch device comprises a plastic pipe with teeth, a switch component, a rubber band, a metal transverse plate, a round pin, a plastic standing leg gasket and a corrugated plastic piece, and the storage device comprises a wire storage box and a steel wire rope of the storage device. The pallet cargo packaging device can restrain all the cargoes in a package, the packaging, package unloading and package storage and arrangement are easy to perform and capable of being finished by one person, the person only needs to go around the pallet, the manpower investment and operation workload are reduced, and the packaging is stable.