This study was conducted to investigate the experiences of undergraduate students majoring in counseling psychology through volunteer activities. For this purpose, face-to-face interviews was conducted with 5 selected students in counseling psychology. The collected data were analyzed according to the analysis procedure of the qualitative case study proposed by Stake(1995). The results of the analysis were categorized into 5 categories, 16 subcategories, and 58 semantic units. The categories include ‘Start a new activity, volunteer!’, ‘Volunteer that gradually permeate life’, ‘Growing’, ‘Career search through Volunteer’, ‘Being an active volunteer’. The participants showed that they had experiences that changed and grew through meaningful volunteer activities. The results of this study are meaningful in that it presented basic information and data necessary for the development of volunteer activities, counseling through using volunteer activities, and group programs for undergraduate students majoring in counseling psychology.