The purpose of this study is to the effect of adolescent's voluntary activity participation on sociality,
focusing on the moderating effect of social support. The survey used a structured questionnaire and a total
of 229 questionnaires were used as the valid sample in the final analysis. For the statistical analysis, the
SPSS Windows 22.0 program was utilized and Baron and Kenny's moderating effect verification method.
The results of this study were as the following. Firstly, as a result of the correlation analyses of the
voluntary activity participation, sociality, and the social support, all of these showed correlations. And, they
showed significant correlations statistically. Secondly, in order to take a look at the influences on sociality
of adolescent's voluntary activity participation, and, as a result of analyzing the voluntary activity
participation and the social support_teacher support with independent variables, all of them showed
significance. Thirdly, as a result of the analysis of the moderating effects, in terms of the relationship
between voluntary activity participation and sociality, it was proven that social support_teacher support
plays the role as a negative effect factor.