In 2021-2030, it is possible that the power balance between China and the United States will rise and fall. The scale of China's economy surpassing that of the United States will bring a systemic impact on the world structure and will also lead to fierce competition between China and the United States. Biden proposed the "de-enemy" of the relationship between the two countries, clarified the goal of "competitive coexistence" and set the tone for the new government's competition strategy against China. China should seek the intersection of its interests and strategies with the United States, explore the path to achieve "China-US coexistence" in competition, and avoid direct collisions between the two countries.