Abstract:In 1957, Tsien Hsue-shen published an article entitled “On the Technological Sciences” in Chinese Science Bulletin, which laid the foundation for the research of technological sciences in China. However, in the following 60 years, the thought of technological sciences failed to receive stable attention and support. It was not until 2021 when General Secretary Xi Jinping made another important statement at the 20th Academician Conference of the Chinese Academy of Sciences, the 15th Academician Conference of the Chinese Academy of Engineering, and the 10th National Congress of the China Association for Science and Technology that technological sciences had entered into a new period of historical opportunity. Under the guidance of General Secretary Xi Jinping's important discourse, the study provides an academic interpretation of technological sciences in three dimensions: disciplinary system, academic system and discourse system, in order to provide decision-making reference and knowledge system support for better guiding the development of science and technology innovation in China.