With the deepening of economic globalization and China's reform and opening up, many outstanding enterprises in China to own a certain amount of funds available to invest overseas acquisitions, hopes to get their own competitiveness improvement through overseas acquisitions. Cross-border mergers and acquisitions is the capital operation of a high-risk activities, enterprises will face risks in various areas such as decision-making, finance, information , law. Circumvention of legal risks is the key to the success of cross-border mergers and acquisitions of enterprises. The author analyzes an overview of the legal risks in cross-border mergers and acquisitions of Chinese enterprises, the characteristics and performance of the way, and thus how to avoid risks form the external environment and internal strategic countermeasures.