Abstract: As an important scientific research tool for discovering natural laws, exploring unknown fields and realizing technological changes, large-scale scientific research instruments are the technical basis and important means for exploring frontier science, boosting social and economic development and making China a strong country in science and technology. In recent years, with the continuous increase of China's investment in science and technology, the scale of large scientific research instruments is also growing, and major original achievements keep emerging. But the problem of low utilization rate is also gradually highlighted. This paper analyzes and summarizes the current situation of opening and sharing of large scientific research instruments and equipment over 500,000 Yuan in China from the aspects of original value, category, institution, location and so on, and puts forward reasonable suggestions.
Scientific research instruments are an important foundation for the development of science and technology, technological innovation, etc. The level of national science and technology development and development potential will be reflected in the sharing of scientific research instruments to a certain extent. The national science and technology development is fast, the development potential is large, and the situation of the sharing of scientific research instruments is good, the instrument usage rate is high, and vice versa.
The degree of sharing of large-scale scientific research instruments in scientific research instruments can better reflect the level of scientific and technological management of the country, and to a certain extent determine the state's scientific and technological level and the ability to innovate. Therefore, promoting the sharing and sharing of large-scale scientific research instruments in the country and improving the utilization rate of large-scale scientific research instruments are inevitable choices for promoting China's scientific and technological progress and improving scientific research. At the same time, it is also an inevitable need for China to build a conservation-oriented society, reduce the waste of science and technology resources, and promote the healthy development of science and technology.
In recent years, the investment in the construction of large-scale scientific research instruments in China has continued to increase, and the growth of large-scale scientific research instruments in research institutes and universities has been particularly prominent. At same time, due to wide variety and large number of large-scale scientific research instruments in China, the departments/institutions, regions, and subject areas are widely distributed. Therefore, it is necessary to study and analyze systematically the sharing of existing large-scale scientific instruments in typical units, which is effective for follow-up works and lays the foundation for development and policy development.
This article aims to analyze the data of the 2015 scientific and technological resources survey, and analyze the data of the operation and sharing of the large-scale scientific instruments recorded in the paper, and propose the problems existing in the open sharing of large-scale scientific instruments in China. Simultaneously, in order to further strengthen the open sharing of instruments and equipment, establish a scientific and reasonable sharing management evaluation mechanism, and promote and improve the quality of shared service work, this paper analyzes and summarizes the present situation of open sharing of large-scale instruments in China and proposes some constructive suggestions for reference.

Key words: large scientific research instruments, open sharing, utilization