This study aims to analyze the process of the Melasti Wewalen Barong Ceremony tradition in enhancing the character development of students within the Pancasila Student Profile (P3) at SMP Negeri 1 Bangli. The background of this research is based on the need for a contextual, local wisdom-based character education model, in line with the implementation of the Pancasila Student Profile in the national education system. This study uses a qualitative approach with a case study design. The object of the study is the process of the Melasti Wewalen Barong Ceremony tradition, which is institutionally implemented at SMP Negeri 1 Bangli. Data collection techniques were carried out through participatory observation, in-depth interviews with the principal, teachers, traditional leaders/stakeholders, and students, and documentation studies. Data analysis was conducted thematically through the stages of data reduction, data presentation, and conclusion drawing.The results show that the Melasti Wewalen Barong Ceremony tradition plays a significant role in developing student character, encompassing the six dimensions of the Pancasila Student Profile: faith and devotion to God Almighty, global diversity, mutual cooperation, independence, critical thinking, and creativity. Character development occurs through planning, implementation, supervision, organization, and leadership, involving active student participation. This tradition serves not only as a religious ritual but also as a medium for experiential character education and the instillation of values. This research has theoretical significance in enriching studies of local culture-based character education and practical significance as a model for integrating local traditions in strengthening the Pancasila Student Profile in formal education.