The project The objective is to create a system lending - borrowing a library book online Gabriel's school and to the satisfaction of the users of the system lending - borrowing library books Gabriel's School. By studying the administrator libraries or librarians. The instrument used for this research is to interview us about the satisfaction of the users of the system lending - borrowing a library book online Gabriel's school in line with the objectives of the research. The results showed that user satisfaction with the system in the form of a system that has clearly divided. Colorful right It is also easy to use.