探索了长三角重大科技基础设施共建共享机制。通过对长三角重大科技基础设施的共建共享现状及存在问题进行分析，给出长三角重大科技基础设施共建共享的对策建议：（1）建立长三角重大科技基础设施规划建设的统筹协调机制，避免在长三角区域重复建设；（2）建立该区域设施共建的建设经费支持机制，共同支持基于重大科技基础设施的研究开发工作；建立该区域设施共用的科研经费保障机制，设立科研专项基金，并受理用户利用设施开展研究的申请；（3）建立长三角用户参与机制，在设施的规划设计阶段就充分考虑运行时的开放和共用；建立面向全球科研人员和机构的开发共享机制，促进长三角地区的原始创新；（4）建立既符合中国国情，又与国际接轨的重大科技基础设施考核评价机制。

Based on the analysis of the co-construction and sharing status and problems of the Yangtze River Delta large scale scientific facilities, the following countermeasures and suggestions are proposed. Establishing the Yangtze River Delta large scale scientific facilities planning and construction coordination mechanism so as to avoid duplication of construction in the Yangtze River Delta region; establishing the Yangtze River Delta scientific facilities construction fund support mechanism so as to support the research and development of large scale scientific facilities; setting up a scientific research funding guarantee mechanism for sharing large scale scientific facilities and accepting users' applications for using the research facilities; establishing the user participation mechanism and considering the opening and sharing of operation in the planning and design stages; establishing a development and sharing mechanism for global scientific researchers and institutions to promote original innovation; perfecting the assessment and evaluation mechanism, which is not only in line with China's national conditions but also in line with international standards.