The invention discloses a manipulator of an intelligent warehousing roadway robot. The manipulator comprises a drive device, a plate seat, a transition plate, a transition plate guide rail, a transition plate synchronous wheel group, a transition plate synchronous belt, a fork plate and a fork plate guide rail, wherein the transition plate is movably arranged on the plate seat through the transition plate guide rail, the transition plate synchronous belt is arranged on the transition plate through front-back cooperation of the transition plate synchronous wheel group, a layout direction of the transition plate synchronous belt corresponds to a movement direction of the transition plate, the middle part of the plate seat is fixedly connected with the lower section of the transition plate synchronous belt, the fork plate is movably arranged on the transition plate through the fork plate guide rail, a movement direction of the fork plate corresponds to the movement direction of the transition plate, and in addition, the middle part of the fork plate is fixedly connected with the upper section of the transition plate synchronous belt; and the drive device is arranged on the plate seat and in transmission connection with the transition plate. The manipulator is scientific and reasonable in structure, fast in response speed and high in position accuracy; and efficient cargo storage and taking and even left-right bidirectional telescopic cargo storage and taking of the manipulator are realized through a multilayer linkage design.