To solve financial data management, the author proposes research on the framework of big data analysis system. In the activities of various enterprises, massive high-frequency data will be generated, and these data are often characterized by infinity, suddenness, disorder, and volatility. Due to the above characteristics of the financial data related to the production activities of the enterprise, the financial data of the enterprise is often different from the actual situation, and the access is not standardized. To solve the above problems, it is necessary to improve the efficiency of enterprise financial management. With the application of big data in the enterprise industry as the background, the author builds a big data-based enterprise financial data analysis system, the construction of the financial data analysis system of electric enterprises is described from three aspects: big data storage, big data preprocessing and financial sharing center construction, to help enterprises improve the accuracy of financial data and the efficiency of financial management.