Aiming at the current situation of difficult arrangement of slender guide bars, high labor intensity and low production efficiency in the flexible guided threedimensional weaving technology. A slender rodshaped material automatic arrangement device is designed. The device is composed of a feeding system and an arrangement system. Its working principle, overall structure and control scheme are introduced. The feeding system uses a roller to scroll the rodshaped material to fail to realize the interval Feeding, the arrangement system realizes the switch of two arrangement methods by replacing the front end. The device has a novel structure and strong versatility, reduces the production cost of threedimensional fabrics, and has high engineering application and promotion value.