The invention has for its object to provide a traction balance adjustment mechanism, a manipulator, and a manipulator system, which can be all put in unerring operation without generation of any dynamic surplus. The traction balance adjustment mechanism 1 is characterized by including a movable part 2 that goes into operation through at least one degree of freedom, wires 7 connected to the movable part 2, and a traction part 6 that pulls one of the wires 7 and pushes out the other, wherein the length of the one wire 7 pulled by the traction part 6 is longer than the length of the other wire 7 pushed out.
