Abstract: General Secretary Xi Jinpings important thoughts on Party building have profoundly addressed the major contemporary issues of what kind of Marxist party capable of longterm governance should we build and how to build it, highlighted the theme of exercising full and rigorous governance of the Party, put forward a series of new concepts, new ideas and new strategies for managing and strengthening the Party, firmly grasped the mission and task of leading the great social revolution with the great selfreform, and formed the core essentials that emphasize a problemoriented approach, thematic focus, strategic considerations, as well as missions and mandates. These important thoughts are reflected in the “13 principles of upholding”, which embody the theoretical foundations of “theories on the Party”, “theories on governancecapacity building”, “theories on longterm governancecapacity building”, and “theories on Party leadership”, thereby forging an integrated framework that integrates “comprehensive Party building” with “targeted Party building”. These important thoughts have achieved a new leap in addressing the contemporary issues of Party building, reflected new changes in the theme of Party building, made new adjustments in the layout of Party building, and formed a new paradigm in the basic theory of Party building, making original contributions to enriching and developing the Marxist partybuilding theory and exploring the laws of the longterm governance of the Communist Party of China. 

Key words: Xi Jinping, Party building, core essentials, theoretical foundations, original contributions

摘要： 习近平总书记关于党的建设的重要思想深刻回答了建设什么样的长期执政的马克思主义政党、怎样建设长期执政的马克思主义政党这个重大时代课题，突出了全面从严治党主题主线，提出了一系列管党治党、兴党强党新理念新思想新战略，牢牢把握以伟大自我革命引领伟大社会革命的使命任务，形成问题导向、主题主线、战略策略、使命任务的核心要义，集中体现为“十三个坚持”，汇聚“党论”“执政党建设论”“长期执政党建设论”“党的领导论”的理论底蕴，形成“大党建”“小党建”一体格局。这一重要思想在回答党的建设时代课题上实现了新飞跃，在党的建设主题主线上体现了新变化，在党的建设布局上作出了新调整，在党的建设基础理论上形成了新范式，对丰富发展马克思主义建党学说、探索共产党长期执政规律作出原创性贡献。

关键词: 习近平, 党的建设, 核心要义, 理论底蕴, 原创性贡献