A remote control system is required to control effectively and to be used easily. Since traditional remote operating system is constituted of a manipulation board and a 2-D monitor, it is hard for human operator to control the operating tasks effectively. And so the authors propose a manipulation system using a 3-D display. The trial system consists of a 3-D information display system and tele-operating system of the robot arms. In this system, an operator perceives 3-D information using an additional 3-D display and so it is easy to control the robot arms with merit that traditional operating systems have no need to remodel.