Does the United States exercise long-arm jurisdiction and impose sanctions on China’s overseas investment only on those tangible assets? Based on the data of the United States’sanctions on China’s overseas investment, this article re-examines this realistic proposition to examine the latest developments of U.S. sanctions. The study finds that, as early as 2018, the United States began to pay attention to and intensify the implementation of such sanctions against China’s digital investment projects. The analysis of the reasons shows that, on the one hand, overseas digital investment (especially crypto digital asset investment) can bypass the international funds clearing system and evade sanctions, which has aroused the United States’high vigilance. On the other hand, overseas digital investment is closely related to sensitive information such as high-tech and network infrastructure, which inevitably triggers the sensitive nerves of the United States’pan-national security review and becomes an important incentive for inclusion in various sanction lists including investment bans. Further research finds that the road for Chinese companies to seek relief against such sanctions is still difficult. Based on their own understanding of rights protection, they are more inclined to choose US domestic courts rather than relatively fair multilateral investment dispute settlement mechanisms, which leads to the failure of rights protection. However, ex post relief is after all“better late than never”. If companies attach importance to the prevention of investment disputes, and choose to invest in areas “within the borders but outside the customs”(such as U.S. foreign trade zones), it may prevent risks before they happen.