The invention discloses an environmental-friendly manipulator operation device which comprises a rack. A mechanical arm is arranged on the rack and is connected with a manipulator device; the manipulator device comprises a support plate connected onto the mechanical arm; an installation hole is formed in the middle of the support plate; a first rotary cylinder is rotatably arranged in the installation hole; a manipulator rotary cylinder is rotatably arranged in the first rotary cylinder; the first rotary cylinder and the manipulator rotary cylinder are located on two sides of the support plate; an inner meshing tooth-type ratchet wheel is arranged in the first rotary cylinder; one end part of the manipulator rotary cylinder is connected with a pawl through a pawl spring; the pawl spring forces the pawl to mesh with the inner meshing tooth-type ratchet wheel so as to realize one-way transmission; and an annular cam surface is arranged on the outer end surface of the first rotary cylinder. According to the manipulator device provided by the invention, through the rotation of the manipulator rotary cylinder, a stroke of a square-shaped sliding rod is changed, so that the switching ofa mechanical finger function is realized, and the environmental-friendly manipulator operation device is simple in structure, reasonable in design and practical.