PURPOSE: A stand structure for prefabricated storage is provided, which can be adjusted in various sizes by fabricating a shelf or pallet using a lot of base panels and upper panels. CONSTITUTION: A stand structure for prefabricated storage comprises a base panel(10) and an upper panel(20). Sides(12,12') are formed in the both ends of the lower surface(11) of the base panel. A lot of partitions(14) are formed between both sides. An insertion hole(16) is formed to insert an upper panel between partitions. The upper panel has the cuboidal shape and is inserted into an insertion hole of the base panel. A through-hole is formed in both sides of the partition. A lot of upper panels are inserted into the upper part of a lot of base panels and are assembled.