Against such a backdrop, this paper aims to present a desirable duty model for university libraries by analyzing their responsibilities at the forefront of the ever-changing environments of the internet and digital technology. It is hoped that this will help universities with the human resources management and institutional development that is essential for appropriate job specification, organizational diagnosis and rational reform, and increasing the expertise of librarians. Specifically, this paper aims to present a duty model based on perceptions of frequency, importance and difficulty of jobs/duties associated with university libraries, by analysing all the duties they perform. Job analysis will help university libraries to analyze the method and content of duties performed by their employees, identify the purpose and reasoning behind these duties, and present requirements for certain duties. When analyzing duties in order to develop a duty model, in particular, there should be a system through which similar duties are integrated, simplified and standardized depending on frequency, importance and difficulty. Through this process, university libraries will be able to optimize human resources management and achieve efficiency in organizational management, as well as creating materials to support education/training and performance management, thus ultimately helping with the rationalization of their operation.