The purpose of this study was to find the legal position of Larwul Ngabal in the regional autonomy policy in the Kei Islands. This study uses a sociological-anthropological juridical approach that sees law as a social phenomenon that can be observed in people's life experiences. As an empirical legal research with a sociological-anthropological juridical approach, the data analysis technique is descriptive analysis. The results showed that the existence of Adat Law Larwul Ngabal in supporting the implementation of regional autonomy based on local wisdom in the Kei Islands both in the implementation of governance in Southeast Maluku Regency and Tual City was formally visible with the preparation of several regional regulations based on the values of customary values, but substantially have not been optimized in various local government policies in order to create a safe, fair and prosperous society, because they can be influenced by various factors such as legal factors, political factors and economic factors.