The invention discloses a waterborne motor manipulator which comprises an operating platform, a shift controller and a transmission. The waterborne motor manipulator is characterized in that the operating platform comprises an operating table-board, a left handle, a right handle, a reversing changeover switch and a speed switch, wherein, the left handle is connected with the reversing changeover switch, the right handle is connected with the speed switch, and the upper middle part of the operating table-board is equipped with a diesel engine tachometer; the shift controller and the transmission comprise motors and gear shift handles, and each motor comprises a rotor, a stator, a rotor shaft, an output shaft and an inductor; one end of the output shaft is connected with the gear shift handles; each inductor comprises a fixed sheet fixed on the motor and a movable sheet fixed on the output shaft; the gear shift handles are movably connected with a connecting rod, and the connecting rod is movably connected with one end of a tie rod; the other end of the tie rod of the shift controller is fixedly connected with a shaft of a clutch, and the reversing changeover switch is connected with the motor of the shift controller; and the other end of the tie rod of the transmission is fixedly connected with a shaft of a diesel pump, and the speed switch is connected with the motor of the transmission.