The invention discloses an intelligent financial decision big data analysis system which comprises a financial information acquisition module, an information screening and dividing module, an investment assessment module, a risk storage database, a financial checking module, a financial analysis module, a local storage database, a decision server and an early warning display terminal. The financial information obtaining module is connected with the information screening and dividing module and the financial checking module. wherein the investment assessment module is respectively connected with the information screening and dividing module and the risk storage database, the financial analysis module is respectively connected with the financial checking module and the local storage database, and the decision server is respectively connected with the investment assessment module, the financial checking module, the financial analysis module, the local storage database and the early warning display terminal. Risk assessment is carried out on enterprise finance, reliable prevention measures are provided, overall planning of the finance is achieved, reliable decision analysis and guidance are provided for management personnel in the aspect of financial management, and risks in the enterprise development process are reduced.