This essay delves into the economic policies of President Donald Trump and their consequential effects on China's economy. It begins by outlining Trump's nationalistic philosophy, specifically focusing on his trade protectionist approach. The essay then examines the impact of these policies, such as tariffs, on China's exports and its manufacturing sector. The analysis includes a discussion on how trade protectionism, including tariffs on steel and aluminum, has affected China's economy and its trade balance with the United States. Furthermore, the essay explores the broader implications of these economic policies on China's manufacturing industries and the overall economy, considering both direct and indirect impacts on employment and global economic value. The conclusion summarizes the key points, emphasizing the far-reaching effects of Trump's economic strategies on international trade and the economies involved.