The product is the combination of intelligent AGV and small-scale vertical warehouse. According to the principle of vertical warehouse stacker, it is connected with WMS / MES and other upper systems to establish an internal independent database management system. Use order / empty box pull mode to deliver materials, and complete the one-way pick-up and delivery task of diversified orders. Using double forks and single control to run different sizes of materials can adapt to more than 5 kinds of materials at the same time. The whole process automatic digital management can realize the complex order automatic distribution, greatly reducing the labor cost and error rate.