Objective: It is of great importance to identify the talent students in the Scientific Olympiad and pay attention to the upgrade of quality of these competitions. The aim of this study was to explain the Students' experiences about the Scientific Olympiad. This research was a phenomenological qualitative study. Data were collected based on questionnaires (27 students) and semi-structured interviews (13 students) who were selected in the Medical Students' Scientific Olympiad. The analyzing of information was performed using clayze method. Results: Students' experiences were divided into two main themes, including motivating and restrictive factors. Scientific level, planning and implementation and welfare issues were obtained as the three main categories by analyzing data. The participants suggested four holding suggestions, side plans, facilities and the notification results. In conclusions, students' experiences stated that the Medical Students' Scientific Olympiad in Iran is still at an early stage that challenges further the knowledge level. Therefore, it is necessary to design questions with high taxonomy by trained academic facilities. Also, the attention to the side programs, welfare amenities and recreational programs as the motivating factors for participating in these competitions recommend.