This research was a phenomenological approach aimed to examine the psychological experiences of aikido practitioners. Data which were collected by in-depth interviewing of 9 aikido practitioners from 3 dojos (training place) which was the aikido club of Bangkok Youth Center (Thai-Japan), the aikido club of Chiang Mai University and the aikido club of sport center of Sukhothai Thammathirat Open University. Psychological experiences of 9 key informants could be arranged into 3 themes as follows : 1) A theme of psychological experiences of the process while in training. Practitioners experienced the test of their psychological challenges. They experienced unpeaceful mind by fear. They experienced despair from disappointment and they sometimes experienced peace in their mind. 2) A theme of attitude toward aikido. Practitioners gained deeper understanding. They found that aikido was the holistic training of body, mind and relationship. They found that aikido was the principal for living and aikido was the path toward peace. 3) A theme of lesson and self-development from training. Practitioners gained insight in the relationship between mind and body. They experienced the development of their mind and had the purpose to practice aikido for self and other development. The research findings showed that there was change in the aikido practitioners’ psychological experiences through aikido learning.
