For people engaged in financial management, the collection of financial data is only the premise of effective allocation of resources, and the truly valuable or most critical link is the analysis of financial data. Compared with the original small data, enterprises need to deal with massive and unstructured business data. The financial department needs to quickly collect, sort out, analyze, utilize and integrate effective information and optimize resource allocation, which makes data mining and management a hot issue for enterprises. However, it is difficult to deal with such a huge amount of data by relying on traditional accounting methods, which has become a difficult problem for every enterprise.