To provide a movable structure having a high actuation holding ability to an external load on a movable mechanism in paper craft for children, for example.

The movable structure is composed of an actuation part 2 and a base part 3 shaped simply like two boxes in hollow structure jointed with each other. A shaft part 1 is provided at a bent part of a connection part between the box-shaped parts. An actuation control part 4 is provided to constantly support the actuation part 2 at an outer circumferential part of the shaft part 1 in accordance with progress of action. In connecting a drive mechanism 5 using power of a motor or the like to the movable structure for installation, a terminal end of the actuation control part 4 connected to the actuation part 2 is constantly housed in the base part 3, with the movable structure shaped like a box in hollow structure, therefore the drive mechanism 5 can be housed in it.