君主世襲制,阿曼蘇丹為國家元首並兼任內閣總理。內閣(或部長)會議(The Council of Ministers):蘇丹兼部長會議主席,另有相關部會首長26人。
2020年8月蘇丹海山頒布數道皇令重整政府部會架構,除了內政、外交、國防、衛生及財政等部外,進行了大規模之組織改造與整併,現有文化、體育及青年部(Ministry of Culture, Sport and Youth)、法務及法律部(Ministry of Justice and Legal Affairs)、勞動部(Ministry of Labour)、運輸、交通及資訊科技部(Ministry of Transport, Communications and Information Technology)、遺產及觀光部(Ministry of Heritage and Tourism)、農漁及水資源部(Ministry of Agriculture, Fisheries and Water Resources)、住屋及都市計劃部(Ministry of Housing and Urban Planning)、經濟部(Ministry of Economy)、新聞部(Ministry of Information)、能源及礦務部(Ministry of Energy and Minerals)、商工暨投資促進部(Ministry of Commerce, Industry and Investment Promotion)、高教、研究及創新部(Ministry of Higher Education, Research and Innovation)、宗教部(Ministy of Awqaf and Religious Affairs),以及社會發展部(Ministy of Social Development)。