The purpose of the present study was to examine the development of the perspective of undergraduate students (N=14 ; all females) who volunteered at an elementary school.  The students were in the beginning stage of training as human service professionals, including some who were planning to become clinical psychologists.  The volunteers wrote notes about their experiences on an electronic bulletin board ; these messages were analyzed with the Grounded Theory Approach and the Trajectory Equifinality Model.  The results suggested that development of the students’ perspective on their volunteer activities went through 4 stages: (a) participant, (b) observer, (c) objective, and (d) panoramic.  This suggests that the students’ work as volunteers and their record-sharing brought them a variety of perspectives and developed their ability to adapt to complicated situations.  These results could be applicable to the training of all types of human service professionals.  However, some students discontinued their volunteer activities before they had experienced any change in their perspective.  This suggests that both establishing an environment in which students can learn from each other, and giving consideration to individual differences, are important for promoting students’ development in their clinical practice.