The invention provides a superposed two-wire distribution valve which is characterized by comprising a distribution valve left plate, N distribution valve intermediate plates and a distribution valve right plate, wherein N is more than or equal to zero; the distribution valve left plate, the distribution valve intermediate plates and the distribution valve right plate are sequentially and closely connected through coupling screws, and are superposed to form a complete valve body; a quantitative distribution unit is arranged on each of the distribution valve left plate, the distribution intermediate plates and the distribution valve right plate, and comprises a quantitative valve element, an indicating rod, an adjusting screw, an indicating rod screw plug, a distribution valve element and a plug; and a quantitative valve hole, a distribution valve hole, a first oil inlet, a second oil inlet, a first oil outlet, a second oil outlet, a first oil duct, a second oil duct, a third oil duct, a fourth oil duct, a fifth oil duct and a sixth oil duct are respectively formed corresponding to each of the distribution valve left plate, the distribution valve intermediate plates and the distribution valve right plate. The superposed two-wire distribution valve has the advantages of being simple in processing and assembling, convenient to clean and maintain, and the like.