High-quality service will increase student motivation in accessing repositories. This study aims to reveal the impact of repository service quality on student motivation in using research services at the State Islamic Institute (IAIN) Purwokerto. This research study used quantitative methods. This study found that seven direct relationships have significant impacts. This study found that Attitude toward_Behavior (AtB) highly influenced students to visit library research services—both online and offline. AtB brings two other variables, namely Library_as Place (LaP) and Information Control (IC), which have an indirect effect on student visiting interest. Thus, activities that should be prioritized to increase student visits to research services in the library were identified. This study concluded that to improve Behavioral Intention and the quality of repository services, it is necessary to improve Attitude toward Behavior as a connecting variable.