The invention relates to a composite stirrup processing and feeding device which comprises a base frame. A roller is arranged on the base frame to feed stirrups during rotation, one end of the base frame is provided with a limiting unit, the limiting unit includes two oppositely-arranged limiting plates, and the two limiting plates are located above the roller, are perpendicular to the roller andact on the stirrups from the left and the right through the opposite inner sides; the discharging ends of the limiting plates are provided with precise limit mechanisms which include lever acting plates, the lever acting plates are rotationally connected to the outer sides of the limiting plates with the middle portions as rotation points, an elastic element is compressed between one end of each lever acting plate and the outer side face of the corresponding limiting plate to provide action force for the other end, the other end of each lever acting plate extends out of the discharging end ofthe corresponding limiting plate and has an action face, and the action faces protrude out of the inner side faces of the limiting plates; and the limiting plates are provided with vertical sliding blocks in a vertical sliding manner, and at least parts of the lower surfaces of the vertical sliding blocks protrude out of the inner side faces of the limiting plates. The composite stirrup processingand feeding device can be used for feeding the square stirrups and accurately discharging out the stirrups according to the designed attitude and position.