Every country, including the Republic of Croatia, has some form of local self-government. Local self-government in the Republic of Croatia is mentioned at the beginning of Croatian statehood as far back as 667. Pope Agathon mediates the signing of a treaty between the Croats and the Byzantine Empire, which regulates relations and governance rights in the new homeland of the Croats. Local self-government developed, changed and adapted over the centuries, and the beginning of legally formed modern local and regional self-government in the Republic of Croatia began in 1992, while local and regional self-government was established in 1993. The establishment of self-government represents the authority in the local area so that the local selfgovernment can more effectively develop goals related to the local area it manages, and thus contribute to decentralization. The local self-government in Bilje Municipality consists of a representative body, i.e. the municipal council of the municipality of Bilje, consisting of 13 councilors and an executive body consisting of the mayor of the municipality and deputy mayor of the municipality from the national minority. The representative and executive bodies aim to improve the quality of life of the residents of the municipality of Bilje, such as education, social and health care, communal and transport infrastructure. I will talk about the Municipality of Bilje as a unit of local self-government, its scope of work, the method of electing the representative and executive body, acts passed by local self-government bodies and the possibility of citizens' participation in direct decision-making in the work of the bodies of the Municipality of Bilje.