With the constant development of economy, the enterprise merger has become a trend of global economy, the enterprise has a huge But China's m&a activity is still in the primary period of development, not only the relative lack of scientific theory research, in m&a activity also produce many problems in m&a, Through a large collection, sorting, synthesized and summarized the method to research on m&a problem, introduces the development history of merger, concept and content, and through the study on the various problems are analyzed, and corresponding countermeasures are put forward, in order to improve enterprise decision-making ability, the ability of independent innovation, enterprise in complex economic environment in the decision-making more scientific and rational m&a in accelerating China enterprise development, at the same time, realize its stability, good and sustainable Title: enterprise merger problemsKey words: enterprise merger, Question, countermeasures