Abstract
Marriage is one of the most important institutions that has various forms of traditions. The marriage tradition that has become a tradition among the people of Madura is endogamous marriage, which is significant in preventing divorce. In Addition, Islamic law also provide room to view various perspectives on the practice of endogamous marriage as an effort to unite individuals within a particular social, cultural, or ethnic group as a proactive effort to avoid divorce. This focus will discuss the social structure in preventing divorce among coastal communities, socia lawl solidarity in the tradition of endogamous marriage, and the supporting and inhibiting factors in the tradition of endogamous marriage. This research uses a qualitative field approach with a case study research type. The data collection technique uses observation, interview, and documentation techniques, while the data analysis uses data reduction, data presentation, and conclusion drawing. The results of this study are that the social structure in endogamous marriage prevents divorce with social stability, trust, familiarity, and cultural influence. Social solidarity in the tradition of endogamous marriage among Lembung coastal communities is strengthened by strengthening family relationships and maintaining social order. While the driving factors in the tradition of endogamous marriage by maintaining cultural identity, social cohesion, as well as social control, and inhibiting factors in the tradition of endogamous marriage with social change, economic culture, and social inequality between local communities.