The American Chamber of Commerce in China recently released a survey report on member enterprises, which shows that the optimism of American enterprises about Chinese business has returned to the level before the epidemic, reaching the highest point in three years. According to the website of the voice of Germany radio, 78% of the 338 American enterprises surveyed said they were "optimistic or slightly optimistic" about their company's five-year business outlook in 2021, which was nearly 20 percentage points higher than that in 2020 and was returning to the level in 2018. Forbes News reported that the survey shows that 82% of U.S. companies in China expect revenue growth in 2021, and even 90% in medical, automotive and other industries. Two thirds of the enterprises surveyed plan to increase the number of employees in China this year. Jeffrey Lehman, President of the American Chamber of Commerce in Shanghai, said at a news conference that "the tone here is rebound and optimism". Since the reform and opening up, with the rapid development of economy, China has paid more and more attention to the improvement of business environment. In recent years, China has focused on participating in the world bank's global business environment assessment. By accelerating its integration into the new development pattern and deeply promoting the reform of "release, management and service", the global ranking of business environment has continued to improve. In the 2020 business environment report released by the world bank, China's business environment rose to the 31st place in the world, ranking among the top ten economies with the largest improvement in optimizing the business environment in the world for two consecutive years. A good business environment is a lasting productivity and competitiveness. At present, China's business environment has the following three advantages: first, the strong support of the government. In recent years, the central and local governments have generally put the optimization of the business environment in a top priority position and continuously promoted the innovation of business system and mechanism. Second, huge consumption potential. China's huge domestic consumer market and high-quality consumer demand have attracted many multinational companies to develop in China. Third, steady economic development. China novel coronavirus pneumonia is facing severe challenges, but China's economy has achieved 12.7% growth in the first half of this year, showing strong resilience. At present, China is still giving full play to its advantages and constantly promoting the optimization of the business environment. Over the years, through constant exploration, China has summed up some unique experiences. First, the government, the market and society perform their respective duties. The government, the effective market and the loving society should work harmoniously to form a joint force and jointly promote the optimization of the business environment. Second, benchmarking the world bank's business environment index system. Local governments at all levels in China take institutional innovation as the core and actively learn from the measurement standards of the world bank to optimize the index system, statistical system, policy system and political performance evaluation system of the business environment. Third, digital empowerment, reform empowerment and service empowerment. China has continuously promoted the simplification of administration and decentralization, the combination of decentralization and management, and the optimization of services, making every effort to create a business environment with "the least approval items, the fastest efficiency and the best service level", so as to promote high-quality economic development. To build a good business environment, we still need to make persistent efforts. Novel coronavirus pneumonia has been China's business environment in recent years. However, there are still some weak links, especially in the new crown pneumonia epidemic. In order to further enhance the attraction of foreign investment and continuously optimize the business environment, China should continue to make efforts in some aspects in the future. First, make up for the four weaknesses of credit, tax payment, cross-border trade and exit mechanism. The Chinese government should continue to improve the level of credit facilitation for enterprises, continue to optimize tax policies, tax collection and management and tax services, continue to optimize customs procedures, upgrade and improve the "single window" system, continue to take the supply side structural reform as the main line and adhere to the eight character policy of "consolidation, enhancement, improvement and smoothness". Second, adhere to the principles of marketization, legalization and internationalization. China should adhere to the demand orientation of market subjects, take the profound transformation of government functions as the core, minimize the direct intervention of the government in market activities, strengthen and standardize the supervision during and after events, constantly improve the guarantee of the rule of law, benchmark the international advanced level, and create a stable, fair, transparent and predictable good business environment. Third, relax market access and promote fair competition. On the one hand, the Chinese government should lower the entry threshold for market players, relax the registration conditions, create a relaxed environment and provide convenient services for entrepreneurship; On the other hand, China should speed up the establishment of a unified, open and orderly modern market system, treat all kinds of market subjects such as domestic enterprises and foreign-invested enterprises equally, and ensure that all kinds of market subjects participate in market competition fairly. (outlook new era)