A manipulator system comprises a manipulator that includes a flexible manipulator 3 provided with an elongated flexible insertion portion 6, a movable portion 7 that is provided at a distal end of the insertion portion 6, and a driving portion 8 that is provided at a proximal end of the insertion portion 6 and that drives the movable portion 7 an operation input portion 2 that is operated by an operator and with which an operation instruction for the flexible manipulator 3 is input a control unit 14 that controls the driving portion 8 on the basis of the operation instruction input via the operation input portion 2 an information input portion 12 with which treatment-site specifying information for specifying a treatment target by using the flexible manipulator 3 is input and an information storage portion 13 that sets a control parameter for controlling the driving portion 8 on the basis of the treatment-site specifying information, wherein the control unit 14 controls the driving portion 8 on the basis of the treatment-site specifying information input via the information input portion 12 by using the control parameter set by the information storage portion 13.
