Xi Jinping, General Secretary of the CPC, attaches great importance to and cares about the spiritual construction of Chinese scientists. Since the 18th CPC National Congress of the CPC, General Secretary Xi Jinping has put forward a series of important expositions on the spirit of scientists based on the historical and practical background of the great practice of modern scientists to realize the independence and rejuvenation of the Chinese nation and the historical mission of Chinese scientists in the new era, profoundly explained the basic connotation of the spirit of scientists, and answered some major theoretical and practical questions such as why and what kind of spirit of scientists should be promoted. The implementation of Xi Jinping’s important statement on the spirit of scientists holds great importance for cultivating innovative young talents in the new era, strengthening the construction of academic and work style, achieving self-reliance and self-strengthening in science and technology, and ultimately realizing the great rejuvenation of the Chinese nation.