This study seeks to evaluate volleyball setters' athletic psychological skills and how these skills are affected by the players' traits. Questionnaires were sent to all participating universities in the Taiwan University Volleyball League of Academic Year 2013-14, with 304 valid responses. Analysing the data with descriptive statistics and comparison of averages, this study finds that: first, university volleyball setters were mostly third-year students (47.7%) , with the majority of them taking on the role of first servers (59.0%) . Many have also played volleyball for over eight years (31.1%) . Second, the most-attained athletic psychological skill was "coach ability", followed by "motivation", peaking under pressure and coping with adversity", "concentration" and "confidence". Third, motivation, stress management and self-confidence were clearly affected by players' traits. The findings suggest that the building of self-confidence is an important factor besides on-scene coaching and teammate support. Players should also undergo well-planned, continuous training to improve their psychological skills.