In developing a website, it must go through usability guidelines to ensure a system is easy to use. Usability is an important aspect to assess the quality of the website interface. This research was conducted to analyze the usability level of the Tourist Management System. This study used a usability testing method with a performance measurement technique and Retrospective Think Aloud (RTA) technique and used the Post Study System Usability Questionnaire (PSSUQ). The variables measured in this study were effectiveness, efficiency, and satisfaction. The results of this study indicated that the system in terms of administrator users is effective, efficient and satisfying. Whereas in terms of operator users, this system was not effective yet had been efficient and provided satisfaction to users.