The process in which refusal affects psychological stress response was examined. A total of 300 participants (157 men, 143 women) completed the questionnaire survey. A model was constructed based on the assumption that the seven types of refusal facilitate the attainment of social support from friends. Thus, we proposed social support affects psychological stress response. A covariance structural analysis was conducted, indicating that modesty decreased depression-anxiety and displeasure-anger through attainment of social support from friends. Conversely, disguise-delay, cheating by laughter and nonverbal refusal increased depression-anxiety and displeasure-anger. Therefore, elementary school students' psychological stress response is affected by refusal was suggested.