日本地方自治法上除了普通地方公共團體之外,另外有設置特別地方公共團體,普通地方公共團體為都道府縣、市町村,而特別地方公共團體,則有特別區、地方公共團體的組合、財產區與地方開發事業團等。 特別地方公共團體,與普通地方公共團體相較,其在其區域、組織與權能上均有其特殊之處。本論文聚焦討論其中的地方公共團體的組合:廣域連合與一部事務組合,這兩種特別地方公共團體,在日本已是被廣泛應的跨域治理機制,但是目前國內對於該跨域治理機制的研究則相對較少。本論文的主要內容與研究目的,在於藉由對於特別地方公共團體及其類型的探討,除了能更進一步瞭解日本的跨域治理制度,並期待有助於我國未來在跨域治理機制上的更深入研究。Under the current Local Autonomy Law, local governments in Japan are classified into two types: ordinary local public entities and special local public entities. Prefectures and municipalities are ordinary local public entities. Special local public bodies comprise four types: special wards, local public cooperatives, property wards, and local development corporations. Some local public entities are designated as special because they have unusual geographic areas, organizational structures, or powers, and they do not exist everywhere. This paper will focus on Local public cooperatives: Wide-area cooperatives and Partial cooperatives. These two special local public bodies have been widely used for across boundary governance in Japan. However, to date, there has been relatively little research conducted on across boundary governance in Japan. This study on special local public entities may lead to a better understanding of across boundary governance in Japan. The result of this study could useful to research on across boundary governance in Taiwan.