中文摘要：

沙特阿拉伯家族政治的合法性来源包括部族传统、教俗合一的政治体制，以及麦吉里斯和舒拉原则。在石油时代，伴随着沙特阿拉伯经济社会现代化的发展，家族政治呈现出法制化、威权化和多元化的演变趋势。阿卜杜勒·阿齐兹的直系子孙掌握国家核心政治权力、瓦哈卜家族与沙特家族势力的此消彼长，以及沙特家族内部的权力制衡，是当今沙特阿拉伯威权家族政治的重要表现。基于沙特阿拉伯的历史发展道路和现实发展水平，该国家族政治尚具有一定的存在合理性和现代化适应性。

英文摘要：

The sources of legitimacy of family politics in Saudi Arabia include the tribal tradition, the political system of integration of religious authority with secular power, and the principles of Majlis- Shura. In the Oil Era, with the development of economic- social modernization in Saudi Arabia, family politics shows the evolution features of legalization, authorization and diversification. There are some major manifestations of the authoritarian family politics, such as the lineal descendants of Abdulaziz＇ s hold of the most important national political power, the ebb and flow between the power of A1 Sheikh and A1 Saud, and the power balance in A1 Saud. Combined with the historical development path and realistic development level of Saudi Arabia, the existence of the family politics still has certain rationality and modern adaptability