The academic style of the scholar not only determine the academic taste and academic quality of the scholar, but also affects the academic atmosphere and academic spirit of the academic community. Studying the academic style of the archivists during the Republic of China and analyzing their progressiveness and influence is important way to understand the archival academic environment, the archival academic activities, the archival academic achievements and the archival academic influences during the Republic of China, which has enlightening significance to create a good academic atmosphere in archive circles. The paper takes the authors of the thirteen old archival books as an example and analyzes that the group of scholars was influenced by various factors such as political environment, cultural environment and academic environment at that time. They have built their own academic style which is practicality, transformation, and innovation. The formation of that academic styles had laid a good foundation for the formation of good academic atmosphere and spirit in the modern archival academic circles, and have an important influence on the establishment and improvement on the modern archives academic system.