Purpose: The purpose of this study was to examine the mediating role of the coach-athlete relationship in relationships between perceived passion and burnout in adolescent athletes. Methods: Participants (N=366) completed the questionnaires of the perceived passion, athlete burnout, and coach-athlete relationship. SPSS18.0 was used to calculate the descriptive statistics, correlations, and AMOS 16.0 were used for confirmatory factor analysis, and structural equation modeling. Results: Harmonious passion positively predicted the coach-athlete relationship, whereas obsessive passion did not. The coach-athlete relationship negatively predicted all three dimensions of athlete burnout. Harmonious was also negatively predictive of all three athlete burnout dimensions, whereas obsessive passion was only positively predictive of sport devaluation. The relationships between perceived passion and athlete burnout were mediated by the coach-athlete relationship. Conclusion: It is of importance to note that high quality of the coach-athlete relationship helps adolescent athletes decrease or prevent burnout. Harmoniously passionate athletes may have higher quality of the coach-athlete relationship and in turn have less athlete burnout syndrome.