The invention discloses a carrying robot and a mechanical arm, and relates to the technical field of robots. The carrying robot comprises a base, driving mechanisms are mounted on the two sides of thebase, a stabilizing mechanism is mounted in the base, and a swing arm mechanism is mounted on the base. According to the carrying robot and the mechanical arm, first servo motors operate to drive driving wheels to rotate, crawler belts are driven to rotate, and therefore the carrying robot is driven to move for transferring; turning operation can be carried out well through the two independent first servo motors, a main control panel of the robot controls a fourth servo motor to operate in the forward direction, therefore, the fourth servo motor operates to drive a threaded rod to rotate in athreaded pipe, the threaded pipe drives a balance weight to move towards the left side, the weight at the left end of the carrying robot is increased, and the weight of an object grabbed by the rightend can be offset; the object grabbing stability of the carrying robot is improved, and the problem of falling down caused during grabbing or conveying is avoided.