To achieve a structure capable of disassembling in transportation or storage, having an opening for arranging an open fire table or a cooking stove for a barbecue or the like in a center part, and having excellent stability.

An assembly table includes: a pair of first table pieces 7 having a first top plate 10, and a pair of arm portions 11 provided in a state of projecting outward in the longitudinal direction from both side surfaces in the longitudinal direction of the first to plate 10; a second top plate 12 and a pair of second table pieces 8 having a second top plate 12, and a pair of support portions 13 provided at both end parts in the longitudinal direction of the second top plate 12 and horizontally receiving and supporting one of the arm portions 11; and two or more of leg portions 9, and is assembled in a rectangular shape so as to have the opening 5a in the center part of a table surface 4a.