We examined the effects of volunteering experience on volunteer intention for junior high school students and high school students (N = 170) who had involved in short-term volunteer activities in the community. As a result of the factor analysis, the volunteer motivation was classified into three groups including "other-oriented motive", "self-oriented motive" and "required motive" (e.g., the school required their participation). Also, the subjective experience during the volunteering was classified into two groups including the "interpersonal positive experience" (e.g., getting along with other volunteers) and "negative experience" (e.g., not being helpful). The result of pass analysis found that empathic concern in volunteering predicted helping effects on helpers (satisfaction), in which interpersonal positive and negative experiences mediated. However, no effect of personal distress was found. Helping effects on helpers and volunteering intention were predicted by other-oriented motive, and volunteering intention was predicted by self-oriented motive, which were mediated by interpersonal positive experience and helping effects on helpers. Required motive decreased helping effects on helpers, mediated by negative experience.