Actively attracting and utilizing foreign investment is an important part of promoting high-level opening up to the outside world and building a new system of high-level open economy. The State Council has issued the "Opinions on Further Optimizing the Foreign Investment Environment and Increasing the Attraction of Foreign Investment", which puts forward clear requirements for improving the quality of foreign investment utilization, ensuring the national treatment of foreign-invested enterprises, and enhancing the level of investment and operation convenience. Promoting the expansion of foreign investment, stabilizing stock, and improving quality is of great strategic significance for building a new development pattern and promoting high-quality economic development. Foreign funded enterprises are important business entities in China, providing important support for foreign trade growth, technological innovation, structural upgrading, and employment expansion. At present, the trend of anti globalization is on the rise. In order to fully utilize foreign investment, better serve and integrate into the new development pattern, it is necessary to take institutional openness as the guide, create a market-oriented, rule of law, and internationalized first-class business environment, fully unleash the potential of the market, talent, and other aspects, strive to attract more high-quality foreign investment, and improve the quality and level of trade and investment cooperation. The business environment is the institutional and mechanistic factors and conditions involved by business entities in market economic activities. It is the soil and ecology for the survival and development of enterprises, and also a key competitive factor in attracting cross-border investment. The stable development of foreign investment is an important indicator for testing the business environment. Both developed and developing economies attach great importance to the construction of a business environment, with the aim of actively attracting foreign investment through more free and open market access, promoting fair competition, strengthening intellectual property protection, and preferential policies such as finance, taxation, and land. On the one hand, high standard international economic and trade rules put forward higher requirements for optimizing the business environment. Currently, some high standard free trade agreements are leading new changes in international economic and trade rules. Its main feature is that, in addition to border rules covering zero tariffs and free and open market access, it also includes a series of post border rules such as subsidies, competitive neutrality, intellectual property protection, government procurement, environmental protection, regulatory consistency, and international dispute resolution mechanisms. Its goal is to create a high standard market-oriented, legal, and international business environment, enhance its attractiveness and competitiveness. On the other hand, the complex changes that have occurred in the international environment urgently require the stability of foreign investment confidence and expectations. Under the influence of comprehensive factors such as geopolitical conflicts, the global supply chain layout has gradually shifted from cost driven to safety and controllability based, and the global industrial chain supply chain system has been restructured and rules reshaped, showing a trend of localization, regionalization, and nearshore integration. At the same time, the current global economic recovery is weak, and the external environment for attracting investment in China is becoming more severe and complex. In this context, focusing on optimizing the business environment has become an important means to attract and utilize foreign investment more vigorously. The structure of attracting foreign investment has undergone a series of changes, which requires further optimization of the business environment. With the booming development of China's digital economy, the manufacturing industry continues to climb towards the high-end of the global value chain, and the utilization of foreign investment presents a trend of high-end, service-oriented, digital, and green development. Multinational corporations are expanding from labor-intensive industries to high-tech industries, which requires us to provide more attractive institutional mechanisms for global technology, talent, knowledge, data, and other factors, and create a more open and innovative development environment. In addition, optimizing the business environment is crucial for building