The Foreign Investment Law of the People’s Republic of China has attracted great attention worldwide since its adoption on March 15, 2019, and will come into force on January 1, 2020. This law can be regarded as the most important law of China in the field of foreign investment since China’s accession to the World Trade Organization. The legislation process of the foreign investment law of the People’s Republic of China has expressed the strong will of the Chinese legislature in amending and perfecting the legal system. The implementation of this law will positively impact the future investment environment of China. This article analyses the background and evolution of the legislation procedure, the highlights and features of the law compared with earlier related laws in the field of foreign investment of China, and the impact and insufficiency of the law, together with the issues following the implementation of the law.