Preparations for the London Olympic Games were moving into top gear while the global financial crisis continues to ferment. No wonder that the budget deficit and security issues during the Games aroused more public attention，whereas the British government put their focus on long-term sports reforms. The constituent framework of the sports system was adjusted and a better balance between the mass sports and competitive sports was achieved. They encouraged the National Fit，enlarged the investment and provided supports on advantageous sports. The concept of sustainable development was carried forward to its greatest degree，and both the tangible and intangible legacies brought up with the Olympic Games were well played. The success of Olympic Games，in a way，reshapes Britain’s national image in the new era，boosts citizens’ confidence，as well as exert some positive impacts on the economic growth of the United Kingdom.