The key points are: frequent orders, many distribution points, complex lines and many additional value-added services. Difficulties: Most domestic chain enterprises have not yet formed a large-scale distribution center, and many domestic chain enterprises have not yet realized centralized procurement and unified distribution. Because there are many shops in chain enterprises, which are widely distributed and have high order frequency, most of the orders have a wide variety of goods and a small quantity, and even some orders have time demand, such as delivery at a certain time or several times, which increases the difficulty of logistics distribution of chain enterprises. In China, an ordinary chain enterprise has about 15 stores, which has not formed a scale, the unified distribution rate is low, the personnel are idle, and the transportation equipment is not fully utilized. It can be seen that only by expanding the scale of operation and developing chain stores to a certain scale can chain enterprises improve the efficiency and benefit of distribution.