Constrained by the policy inertia of the previous administration，the Biden administration adopted a tough policy toward China in its early days. After more than half of his time in office，the Biden administration realized that this approach was not working and began to adjust its policy toward China，preventing the bilateral relations from further souring. However，in crucial or sensitive arenas，the U.S. continues to contain China. With “competitive advantage” and “national security” in concern，the U.S. continues to implement the policy of suppressing China through technological blocking. Looking ahead to the future，even if cultural exchanges between China and the United States resume，scientific and technological exchanges will still be greatly restricted.