A medical manipulator (10A, 10B) comprising: a manipulator main body (11A, 11B) having a handle (14, 150); a drive unit, which is capable of being attached and detached with respect to the handle (14, 150), and including a drive source; and a number of times limiting mechanism disposed on the handle (14, 150), which, in an event that the number of times that the drive unit has been attached and detached with respect to the handle (14, 150) has reached a predetermined number of times, prevents attachment of the drive unit with respect to the handle (14, 150), wherein the number of times limiting mechanism comprises an operating body that is mechanically interlinked with the attachment and detachment of the drive unit with respect to the handle (14, 150), and a counter mechanism that is operated by a predetermined amount with each time of operation of the operating body, such that when the counter mechanism has been operated the predetermined number of times from an initial state thereof, attachment of the drive unit with respect to the handle (14, 150) is prevented, wherein the number of times limiting mechanism is capable of being operated from a non-regulating condition to a regulating condition, and includes a stopper that, in the regulating condition, projects into a movement path of the drive unit when the drive unit is attached to the handle (14, 150); the counter mechanism includes an intermediate transmission mechanism that is driven accompanying operation of the operating body, and a rotating body that is rotated by the intermediate transmission mechanism; and in a state in which the number of times of attachment and detachment is less than the predetermined number of times, the rotating body engages with the stopper to maintain the non-regulating condition, and in a state in which the number of times of attachment and detachment has reached the predetermined number of times, the rotating body allows the stopper to be changed to the regulating condition, and each of the operating body, the intermediate transmission mechanism, and the rotating body is constituted from a plate-shaped member; and the stopper is changed from the non-regulating condition to the regulating condition accompanying a tilting movement of the stopper from an initial posture. a manipulator main body (11A, 11B) having a handle (14, 150); a drive unit, which is capable of being attached and detached with respect to the handle (14, 150), and including a drive source; and a number of times limiting mechanism disposed on the handle (14, 150), which, in an event that the number of times that the drive unit has been attached and detached with respect to the handle (14, 150) has reached a predetermined number of times, prevents attachment of the drive unit with respect to the handle (14, 150), wherein the number of times limiting mechanism comprises an operating body that is mechanically interlinked with the attachment and detachment of the drive unit with respect to the handle (14, 150), and a counter mechanism that is operated by a predetermined amount with each time of operation of the operating body, such that when the counter mechanism has been operated the predetermined number of times from an initial state thereof, attachment of the drive unit with respect to the handle (14, 150) is prevented, wherein the number of times limiting mechanism is capable of being operated from a non-regulating condition to a regulating condition, and includes a stopper that, in the regulating condition, projects into a movement path of the drive unit when the drive unit is attached to the handle (14, 150); the counter mechanism includes an intermediate transmission mechanism that is driven accompanying operation of the operating body, and a rotating body that is rotated by the intermediate transmission mechanism; and in a state in which the number of times of attachment and detachment is less than the predetermined number of times, the rotating body engages with the stopper to maintain the non-regulating condition, and in a state in which the number of times of attachment and detachment has reached the predetermined number of times, the rotating body allows the stopper to be changed to the regulating condition, and each of the operating body, the intermediate transmission mechanism, and the rotating body is constituted from a plate-shaped member; and the stopper is changed from the non-regulating condition to the regulating condition accompanying a tilting movement of the stopper from an initial posture.