This study investigates the feasibility and effectiveness of using ChatGPT for training case conceptualization skills in psychological counseling. The novelty of this research lies in the application of an AI-based model, ChatGPT, to enhance the professional development of prospective counselors, particularly in the realm of case conceptualization—a core competence in psychotherapy. Traditional training methods are often limited by time and resources, while ChatGPT offers a scalable and interactive alternative. Through a single-blind assessment, this study explores the accuracy, completeness, feasibility, and consistency of OpenAI's ChatGPT for case conceptualization in psychological counseling. Results show that using ChatGPT for generating case conceptualization is acceptable in terms of accuracy, completeness, feasibility, and consistency, as evaluated by experts. Therefore, counseling educators can encourage trainees to use ChatGPT as auxiliary methods for developing case conceptualization skills during supervision processes. The social implications of this research are significant, as the integration of AI in psychological counseling could address the growing need for mental health services and support. By improving the accuracy and efficiency of case conceptualization, ChatGPT can contribute to better counseling outcomes, potentially reducing the societal burden of mental health issues. Moreover, the use of AI in this context prompts important discussions on ethical considerations and the evolving role of technology in human services. Overall, this study highlights the potential of ChatGPT to serve as a valuable tool in counselor training, ultimately aiming to enhance the quality and accessibility of psychological support services.