Abstract: [Purpose/Significance] The preservation of scientific and technological literature resources has been included in the strategic planning of many national libraries. Chinese libraries still lack local preservation and service methods for digital resources. It is urgent to clarify the key issues and establish work strategies. [Method/Process] By analyzing the current international intellectual property situation and the new requirements of institutional digital resource asset management, this paper investigated the current situation of local preservation of digital resources in domestic and foreign literature supporting institutions, sort out the key issues of library digital resources preservation and service, and then puts forward the local preservation and service mode of digital resources in Chinese libraries. [Results/Conclusions] The key issues of local preservation of digital resources include intellectual property protection, library service methods, and preservation continuity. It is necessary to determine the principles of digital resources collection protection, local preservation and self-control from the perspective of digital resources collection system construction, and can obtain digital resource collection content and service rights through methods such as national agreements and electronic resource procurement clauses stipulating preservation rights, international cooperation, and digital deposits. The "online, near line, offline" service strategy of digital resources will be supported by the technical architecture.

Key words: digital resources, collection preservation, local self-control, services