[Purpose/significance] The institutional repository has been developed rapidly in recent years, but there are still many problems to be solved, such as the problems of ideas, policies, technologies, promotion and sustainable development. [Method/process] This paper elaborates the current situation of China's institutional repositories through a variety of research methods, and analyzes the existing problems in the development of IR. [Result/conclusion] On the basis of the existing solutions, this paper expounds some countermeasures. Enhancing promotion makes IR more popular and encourages scientific researchers to positively unload their research achievements. The precondition of this is to reform the management and determination system of scientific research achievements. It is also necessary to make open access be an important channel of promoting the flowing of scientific achievements and the communication of scientific research thoughts as well as scientific innovation.