One of the objectives of this research is to understand how the tradition of band entertainment is carried out in the Pekawai Village, Sayan Sub-district, Melawi Regency, and how Islamic legal views on this tradition apply to the Walimatul Urs in Pekawai Village, Sayan Sub-district, Melawi Regency.This research uses a qualitative research method, specifically field research, and is descriptive in nature. In other words, this research explains, describes, and analyzes data obtained from the field. Data collection techniques used in this thesis include observation, interviews, and documentation, and the analysis is qualitative with a deductive thinking approach. The results of the research in Pekawai Village, Sayan Sub-district, Melawi Regency yield the following conclusions: 1) The Band Entertainment tradition is a practice that occurs after customary calculations and family approval. To provide entertainment, bands use single-organ musical instruments and perform with female vocalists until late at night. Currently, band entertainment is often misused for excessive alcohol consumption and gambling, leading to disturbances. Behind all this, there are communities that engage in entertainment within certain legal limits. 2) From an Islamic legal perspective, the Quran, Hadith, 'Urf (customs), and the Band Entertainment tradition in Walimatul Urs are considered. If conducted in accordance with Islamic law, it is permissible (mubah), but it becomes prohibited (haram) if excessive band performances and late-night entertainment with female vocalists are involved. Entertainment of this nature, which includes drinking parties, seclusion, and mingling while dancing provocatively, leads to disturbances. Therefore, Islam prohibits such types of entertainment and considers them 'Urf that is Fasid (corrupt). Keywords: Keywords: Islamic Law, Band Entertainment, Walimatul Urs, Pekawai Village.