In this study, the theory of planned behavior was employed to explore the behavior model of junior high school students participating in Taekwondo. By purposive sampling, the samples were 300 junior high school students who participated in Taekwondo in Taiwan. A questionnaire survey was conducted and 276 valid questionnaires were completed; the effective response rate was 92%. Descriptive statistical data analysis was conducted to analyze the background of taekwondo participants; independent samples T test and one-way ANOVA were used to analyze the different demographic variables of the differences in behavioral intentions; finally, the pathway analysis was used to verify the impact of behavioral intention toward attitudes, subjective norms, perceived behavioral control, and school bullying. The results indicate that gender, school areas, grade, and school sports teams don’t reach a significant difference in behavioral intentions; the attitudes, subjective norms, and perceived behavioral control of junior high school students participating in Taekwondo has a significant influence on behavioral intention; however, school bullying does not have a significant influence on behavioral intention. Based on the findings of the study, practical suggestions are made for schools and education authorities for future reference regarding Taekwondo.
