In this video, servo experiment of the DSD (Double-Screw-Drive) forceps manipulator developed in this paper can be seen. Using the control system, such a servo experiment that the inclination of the bending part of DSD forceps tracks the inclination of the joy-stick forceps was executed. In the bending motion, bending angle of the joy-stick forceps was inclined to the maximum and rotation angle of the joy-stick forceps was rounded so that the tip of DSD forceps draws circular orbit. In practice, the tip of DSD forceps drew smooth circular orbit with tracking the motion of joy-stick forceps.