Under the blessing of the development of modern information technology, the integration of industry and finance has become the mainstream development trend of enterprise financial management. The internal financial management mode of the enterprise also needs continuous reform and innovation. Based on this, the paper studies the reform and innovation of financial management model under the background of industry-finance integration. This paper discusses the specific role of financial management innovation in maintaining capital safety and promoting the steady development of enterprises under the background of financial integration, and analyzes the three principles of process, integrity and risk control that financial management innovation should follow under the background of financial integration. Finally, the article combines the financial management reform under the integration of industry and finance with the practical and difficult problems in budget management control and data analysis, and puts forward specific countermeasures to effectively prevent financial risks, innovate budget management and establish information system under the guidance of the concept of integration of industry and finance.