The purpose of this study is to verify the relationships among ability belief, exercise stress, career indecision, and dropout intention of the college taekwondo athletes. College taekwondo athletes were subjected to questionnaire and based on convenience sampling, total of 348 out of 407, excluding 57 samples that were not suitable for analysis were used for final data analysis. For statistical methods for data processing, frequency analysis, reliability analysis, exploratory factor analysis, correlation analysis, and structural equation model analysis were implemented utilizing SPSS 20.0 and AMOS 20.0 programs. The ability belief of college taekwondo athletes had significant impact upon dropout intention, and exercise stress, The exercise stress of college taekwondo athletes had significant impact upon career indecision, and dropout intention, The career indecision of college taekwondo athletes had significant impact upon dropout intention. Ultimately, in order to reduce the dropout of athletes, it suggests the importance of psychological management to increase athletes' ability belief, the creation of a light sports culture to reduce sports stress, and the need for career education considering individual aptitudes and interests.