Abstract: In order to standardize the acceptance process of coal transportation plan, reasonably allocate transportation capacity resources, and maximize the benefits of coal transportation, this article designed and developed an auxiliary decision system for automatic adjustment of coal categories loading daily plan. Based on Quick UI, JFinal framework technology and Git version control technology, the functions of empty car resource management, transportation capacity management, daily shift plan management and plan adjustment management were implemented by modeling coal category transportation capacity resource allocation business. The system was put into operation in Xi'an Group, which effectively reduced the intermediate links in the preparation work of coal transportation plan, reasonably configured the transportation capacity, standardized the acceptance process, and achieved good results.