Abstract: In recent years, with the increasing awareness of literature conservation of the Republic of China era, the research on their collections, conservation cases and protection methods has received extensive attention. Due to the complexity of paper degradation, the conservation methods based on its degradation process are worthy of in-depth study. This paper sorts out the protection methods in the conservation of the Republic of China era from the perspective of Chinese journal articles. On this basis, it analyzes and summarizes the reasons for the degradation and deterioration of paper and the technological protection methods. Through the analysis of the year distribution, the main institution distribution, the sources of the literature and keyword distribution of journal articles, it is found that relevant research is mainly rooted in libraries and universities, and the main achievements can be divided into several aspects: protection systems, original protection measures and regenerative protection measures. The original protection measures can avoid or slow down the aging and degradation of paper fibers by improving the preservation environment, deacidification treatment and restoration work, so that the preservation life can be prolonged. The regenerative protection measures reduce the continuous damage caused by the circulation of the original documents through micro technology, digitization and photocopying publishing, so as to protect them and strengthen their utilization. The reasons for the damage are complex, and effective conservation is very important. This study provides a reference for the in-depth and multi-dimensional scientific and technological research of the literature conservation of the Republic of China era.

Key words: Chen Leyi1, 2, Wang Sinong1, 2 (1 Fudan University Library, 2 Institute for Preservation and Conservation of Chinese Ancient Books)