Analyze the correlation between big data technology and university management accounting, summarize the impact of big data technology on university management accounting, point out the main path of big data technology into university management accounting, and finally combine the current big data technology in the university management accounting system The current situation of application in innovation, put forward four countermeasures and suggestions, for the reference of the accounting management departments of universities. This paper briefly introduces the connotation of "big data", analyzes its role in promoting financial reform, and combines the particularity of financial work in colleges and universities, and proposes to build a "big data" service sharing platform, improve the information level of financial management, and cultivate high-quality refined management measures for financial managers.