A pallet for engaging with multiple packaging boxes is provided. Each bottom box surface of each packaging box has a recess. The pallet comprises a top pallet surface for engaging with the packaging boxes, a bottom pallet surface; and an outer side wall disposed between the top pallet surface and the bottom pallet surface. Wherein, the top pallet surface includes a pallet recess portion having an upward opening formed by caving toward the bottom pallet surface, and a pallet protrusion installing surface formed surrounding the pallet recess portion. The pallet protrusion installing surface has at least one pallet protrusion for engaging with the recess of the bottom box surface of the packaging box. A packaging case is also provided. The present invention can increase the stability of the packaging case stacked by the packaging boxes, and decrease the damage of the liquid crystal panel in the transportation process.