Abstract:Strengthening the construction of international scientific research environment is conducive to promoting international scientific and technological exchanges and cooperation, as well as building an open innovation ecosystem with global competitiveness. Based on research interviews and policy analysis, this study analyzes the blockages and proposes policy recommendations from six aspects: entry and exit of scientific research personnel, cross-border flow of scientific data, cross-border flow of scientific research materials, openness of S&T plans, settlement of international S&T organizations, and services and welfare of foreign talents. The research reveals several problems existing in the current construction of international science and technology environment, such as insufficient openness of S&T innovation system and lacking of relevant policies. And these problems lead to an obstructed crossborder flow of innovation resources, reducing the effectiveness of global innovation resources’ convergence. Deep reasons for these problems could be categorized as, on one hand, the systematic deficiency on policies, and on the other hand, problems on policy’s implementation, lacking awareness and cumbersome procedure. For future development, it is suggested to promote top-level design, improve laws and regulations, strengthen departmental coordination, optimize policies and regulations, simplify procedures, and refine operational guidance, so as to break through the cross-border flow of personnel, data, materials, and capital, to build a more competitive institutional environment for S&T cooperation.