This study aims to explore the interplay between university athletes' goal-orientation when they participate in sport activities, motivation to participate, and confidence. With approximately 400 students ranging from first-year to fourth-year students who studied physical education, leisure, or related fields in universities in Kaohsiung or Pingtung as research participant, this study selected a sample of 100 students at the piolet test and handed out a paper-based questionnaire for survey and data collection. Results of this study include: There was a significant correlation between university athletes' goal-orientation, motivation to participate, and confidence when they participate in sport activities. Based on research results and discussions, this study proposed the following suggestions for sports training and future research: (1) creating a good environment for training and cultivating appropriate atmosphere for training; (2) designing a suitable training plan and carrying out regular examination and modification; (3) encouraging the atmosphere for sport activities at the school campus; (4) expanding research directions and comparing athletes at different stages; (5) conducting qualitative interviews on the premise of quantitative research so as to have an in-depth study.