The invention relates to a manipulator device capable of automatically grabbing reaction cups. The manipulator device comprises a base as well as a transmission mechanism and a lifting mechanism arranged on the base, wherein the transmission mechanism comprises a stepping motor, a synchronous pulley, a driven wheel and a synchronous belt; the output shaft of the stepping motor is connected with the synchronous pulley; the synchronous belt is wound on the driven wheel and the synchronous pulley; a grabbing mechanism is arranged on the lifting mechanism; and the lifting mechanism is connected with one side of the synchronous belt. The manipulator device has the following advantages: a brand new automatic cup grabbing device combining electromechanical and being compact and portal in structure is provided; in the case of outage or offline, high stability and reliability are realized and the manipulator component does not fall off; and the manipulator device is high in grabbing efficiencyand precise in control and can conveniently realize automation of an instrument and equipment.