Abstract:Contemporary open science is reshaping the traditional modes of scientific research, emerging as a significant trend in global technological development and collaboration. This paper, through a systematic review of academic literature and policy documents, looks back on the development of contemporary open science from its inception in the late 20th century to the consensus stage of the United Nations' Open Science Recommendation in 2021. It analyzes the evolution of the concept and content of open science, with a particular focus on major technological entities such as the European Union, the United States, and the United Nations. The discussion emphasizes the roles of open access and open data, the two pillars in the open science movement, and deepens the historical understanding of the definition of open science. Simultaneously, in the form of concepts and contents, the foundation period, exploration period and cooperation period of the development of open science are explored, presenting the pursuit and advocacy of a new paradigm of open sharing of scientific research exchanges from the scientific community to the national level. Looking forward to the future direction of my country's scientific and technological construction and participation in international cooperation, efforts should be made to promote it from multiple aspects such as top-level design planning, infrastructure construction and evaluation system reform, so as to seize the development opportunities of open science.