The increasing mental health challenges among elders demand specialized interventions, especially within Thai communities where resources are limited and stigma persists. While monks offer spiritual support, there is a gap in addressing complex mental health needs. This research aims to develop a monk-led elderly mental health counseling program in Thai Buddhist communities. From January 2023 to March 2024, this study underwent four phases. Initially, qualitative interviews with thirty-six monk and elder participants elucidated requirements. The program development integrated findings from the requirement study, the Solution-Focused Brief Therapy process, and Buddhist mindfulness principles to create a prototype. The quality assessment involved expert content validation, feasibility examination by stakeholders, and a small-scale pilot testing with five monks. Finally, the feasibility of the program was assessed with thirty-two monks. The study reveals three key components of the monk-led elderly counseling program focused on mental health: the counseling process known as MPS-MAV-PI (an Introduction to Mindfulness, Identifying Problems, Assessing the Severity, Mindfully Observing Thoughts and Emotions, Acceptance, Visualizing Success, Planning Strategies for Problem-solving, and Implementation and Subsequent Monitoring), the C-TIME strategy (Collaboration, Training Manual, Implementation, the Monitoring, and Evaluation), and the program manual. Moreover, feasibility assessments among monks show the high feasibility of the program for implementation. The monk-led counseling program holds promise in addressing these challenges, with high feasibility indicating potential effectiveness and scalability. Future research will prioritize evaluating its cost-effectiveness and overall effectiveness.