In counseling and psychotherapy, flow experience is essential for clients and clinical psychologists who guide individuals toward psychological well-being. This study aims to describe the flow of experience experienced by clinical psychologists while carrying out the counseling and psychotherapy process-qualitative approach with phenomenological method. The informants of this study were three clinical psychologists who have provided counseling and psychotherapy services with a minimum practice period of 5 years. Data analysis was carried out with the Interpretative Phenomenological Analysis model. The results showed that the description of the flow experience could be detailed through nine points, namely: 1) Efficiency in Service, 2) Potential and Self-Actualization, 3) Client Welfare, 4) Evaluation of Client Development, 5) Quality of Service, 6) Problem-Solving Ability 7) Personal Growth 8) Service Effectiveness 9) Psychological Well-being. Important points can be recommended: First, the support of psychology organizations and practitioners to improve understanding of the flow experience. Also, using other research methods is very useful to explore and find more indepth and multi-perspective research results.