With the constant renewal of the knowledge age, economic globalization is intensifying. Big data is the inevitable outcome of the development of information technology to a certain extent, which integrates various Internet technologies and brings many conveniences to people's lives and work. Massive data not only brings difficulties to management and maintenance, but also provides great potential value. As an important development field of social and economic construction, it plays an important role in promoting the progress of Chinese society and the improvement of people's material level. The application of big data technology in financial management is an inevitable trend and need of the development of modern society, which makes new development and breakthrough in the financial field. Based on big data and its characteristics, this paper provides an important way to solve big data in financial industry. With the application of science and technology, financial information management based on big data has been realized, which is helpful to promote the continuous progress of China's financial industry.