Eight-degree-of-freedom tandem master manipulator and surgical robot using master manipulator

The invention discloses an eight-degree-of-freedom tandem master manipulator and a surgical robot using the maister manipulator. The eight-degree-of-freedom tandem master manipulator includes a position part and a posture part; the position part includes a base, a first connecting rod, a middle connecting piece, and a second connecting rod connected in series through rotary joints, and the position part has three degrees of freedom; and the posture part includes a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, and an opening and closing mechanismconnected in series through rotary joints, and the posture part has five degrees of freedom, wherein the base, the first connecting rod, the middle connecting piece, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, the sixth connecting rod, and the opening and closing mechanism are connected in series through first, second, third, fourth, fifth, sixth and seventh j