To provide a packing case that saves resource, labor, and cost, ensures further protection and safety during transportation, storage, etc., and enables efficient, systematic packing, transportation, protection, management, etc.

Corrugated-board plate members 1 and 2, each of which has an A-4 size storage hole 7, are stuck together to form storage portions. A corrugated board bottom plate 3 and a corrugated board lid plate 4 are stuck to the storage portion as a bottom and a lid, respectively. Articles to be stored are fixed in the storage portions with a stored-item-fixing cut-away plate 15.