It introduces the concept, basic process and advantages of paper book PDA. And then, taking Jilin Institute of Chemical Technology library as an example, this paper introduces the present situation and existing problems of paper book PDA service in small and medium-sized university library.Finally this paper analyzes the optimization strategies of paper book PDA in small and medium-sized university libraries from four aspects of fund allocation, improving readers' information literacy education, strengthening publicity and enriching available bibliographies.