Abstract：The Trump administration’s trade war against China has been the most serious challenge facing Sino⁃US relations in recent years. The US⁃China trade war results from multiple factors such as economics, strategy, politics, and the personality of President Trump. With strong economic strength and comparative advantages in Sino⁃US economic and trade relations, the US starts the trade war and pressures China in means of morality, legislation, Chinese identity, technology, alliances, and business entities. China has also taken countermeasures in those corresponding fields, making efforts to bring the US back to the negotiating table. With regard to the process of the trade war, economic and political factors have profoundly shaped the direction of the trade war. On the whole, the political and security spillovers of Sino⁃US economic and trade relations have been reinforced, and it is likely to result in the strategic competition between China and the US, which require serious management by both sides.