In the digital era, in the face of the continuous increase of information data, enterprise financial management is facing many challenges in data screening and data processing, and how to use modern science and technology to provide technical support for the construction of enterprise financial and accounting informatization is the focus of enterprise research under the background of the new economy. In order to occupy a place in the increasingly competitive market environment, the construction of enterprise financial and accounting information should fundamentally change the traditional management mode and focus on enhancing its core competitiveness, so as to accelerate the pace of innovation in information construction. Therefore, after understanding the development trend of the new economy, this paper systematically discusses the implementation method of enterprise financial accounting informatization construction according to the current financial and accounting work of enterprises, so as to provide a powerful technical tool for enterprise development