To easily execute the assembly and disassembly of an assemblable/disassemblable container in a short time.

An assemblable/disassemblable container C1 is constituted of five members including one bottom member 1, two long wall members 2, and two short wall members 3. Firstly, a cylindrical container body C1' is formed of the two long wall members and the two short wall members, and secondly, the cylindrical container body is connected to the bottom member. Thus, the assemblable/disassemblable container is assembled in a box shape. Further, by drawing the cylindrical container body from the bottom member from the box-shaped assembled state, and disengaging the engaged state of the long wall members and the short wall members, the assemblable/disassemblable container is disassembled into the five members including the one bottom member, the two long wall members and the two short wall members.