With the development of computer technology and the upgrading of corporate economy, the traditional financial work model has been unable to keep up with the pace of development of the times. The integration of business and finance is the trend of financial development in the new round of industrial technology revolution. The development of information technology and the widespread application of big data have forced the financial industry to upgrade. Generally, the process of business and financial integration of production enterprises is a process in which professional financial personnel participate in the enterprise product development and design, material procurement, production operations, marketing, after-sales service and other links. Implementing a decision-making support system in each link of the industry-financial integration process will help optimize information management, improve production efficiency, increase production capacity utilization, reduce production costs and waste, and increase product differentiation in accordance with market and customer needs. it can also improve the overall competitiveness of the company, reduce the detours of the company's development strategy, and ensure the realization of the company's profit goals.