The bright spot of shelf industry is similar to that of 2016, which is still reflected in the aspect of intelligence. however, with the deepening of research and development, there are more and more high-level shuttle plate shelves, and gradually evolved into two clear development directions, the storage to shelf system represented by tray shuttle plate and the selection to shelf system represented by material box shuttle plate. In addition, the project of "the unity of storehouse and rack" has emerged in a large area, and its advantages have been favored by more and more owners. However, due to the limitation of fire regulations, although there are many "integrated projects" in China, the number of projects built in China is still very few, and more projects are implemented overseas. However, in any case, the unity of library and rack will be an important development direction of shelf before it comes.