Abstract:The UK continued to be the major destination in Europe for Chinese investment during 2019-2020. High-profile cases were lacking but enthusiasm was strong in real estate，technology，education and manufacturing. Britain’s paramount piece of legislation for national security review，National Security and Investment Bill，was introduced and completed first reading. It is widely estimated that it will pass later this year，marking for the first time in the country the establishment of a separate screening process on national security grounds. Against the backdrop of financial difficulties in British businesses after the pandemic hit，the government promulgated three secondary legislations in June 2020 to expand the “sensitive” sectors，lower the threshold and grant special protection to companies whose acquisition may have implications for the country’s public health. Great uncertainty is expected for the coming year in the adoption and implementation of the Bill，Britain’s China policy and relations and geopolitical shifts. Therefore，it is recommended that companies that plan to invest in the UK closely follow the procedures and practice and make decisions based on proper due diligence and choice of timing.