The aim of this study was to develop a teacher's stressor scale for junior high schoolbased extracurricular sports activities and to compare cognition of stressors among attributes. The participants of this investigation were 1042 teachers who coach extracurricular sports activities; randomly selected by stratified sampling. Respondents were 373 teachers (males: 293, females:80) . Exploratory factor analysis revealed 7 factors (e.g. time burden of extracurricular sports activities and

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... of communication with students) that were composed of 24 items. In addition, construct validity and reliability of the scale were confirmed by confirmatory factor analysis and Cronbach's alpha. The result of t test and one-way analysis of variance revealed significant differences between attributes. In this study the validity and reliability of the teacher's stressor scale for junior high school-based extracurricular sports activities were confirmed. The results of comparisons among attributes suggested that different teachers' attributes were also different from the cognition of stressors.