Abstract: Xi Jinping's Party building thought is formed in the historical context in which socialism with Chinese characteristics enters a new era. It originates in the complicated and volatile background of the Party's problems and hidden dangers and is deeply rooted in the historical orientation of the new era. It undertakes the great mission of the Party building project， focusing on forging the ability to govern the country in a new era. It has， by sober political awareness and responsibility， drawn a blueprint for Party building in the new era and deepened the understanding of policing the Party itself and imposing strict discipline on its members， creatively opening up a new realm for Party building and providing theoretical guidance and fundamental compliance for Party building work in the new era.

Key words: Xi Jinping, in the new era, Party building thought