The “14th Five-Year Plan” period is a critical period for Beijing to implement the strategic positioning of the capital city，accelerate the construction of an international scientific and technological innovation center，take scientific and technological self-reliance as the strategic support for development，and build a new development pattern. Today’s world is undergoing rapid changes unseen in a century，the international situation is becoming increasingly complex，and the environment and challenges are undergoing new changes. Scientific and technological innovation and popularization of science bear a major historical mission and responsibility. This article focuses on the relevant content of “Beijing’s”14th Five-Year Plan “Period of Science and Technology Popularization Development Plan”，reviews the development of Beijing’s science popularization during the “13th Five-Year Plan” period，analyzes the situation and challenges faced by Beijing’s science popularization work，and expounds the “14th Five-Year Plan” period. The development goals，key projects and practical significance of Beijing’s science popularization undertaking.