During 2020-2021，Chinese investment in the UK further shrank，consistent with the pattern across FDI destinations. Without mega deals and with dampened interest in areas that had long attracted Chinese investment，the UK was only ranked the fifth in 2020 among European destinations for Chinese capital，while smaller-sized deals were concentrated in the fields of mineral resources，manufacturing，technology and medicine. On April 29，2021，The National Security and Investment Act 2021 got royal assent，marking that the UK has established a formal screening mechanism to block investment that may pose “national security” risks. The government has established a special investment agency to implement a combination of mandatory and voluntary declarations for investigations in the UK，and has granted the government the power of ex post “active intervention” in transactions. Even greater uncertainty is expected for the coming years in the implementation of the Act，Britain’s relations with China and geopolitical shifts. Therefore，it is recommended that companies that seek to invest in the UK closely follow the guidelines and enforcement of the Act as well as the state of international affairs，and decide based on proper due diligence and wise choice of timing.