With the rapid development of my country's economy, enterprises are facing more intense competition. Strengthening the innovation and practice of management accounting and integrating business activities and financial activities can make up for the shortcomings of traditional management accounting while enhancing the effect of enterprise management., and then enhance the market competitiveness of enterprises. As a core course of accounting majors in colleges and universities, management accounting has many problems in its teaching process. Therefore, based on investigation and analysis, the article concludes that its teaching Goal deviation, low course orientation, insufficient succinct teaching, single teaching and assessment mode, etc., and according to the background of business-finance integration, increase the practical ability of management accounting, and put forward specific improvement measures.