Abstract: The basement of the North China Craton consists of three micro-continental blocks (Eastern Block, Yinshan Block and Ordos Block) and three Paleoproterozoic mobile belts (Khondalite Belt, Trans-North China Orogen and Jiao-Liao-Ji Belt). These tectonic units are distinctly different in metamorphic time and P-T evolution. Metamorphism of the Late Archean basement rocks in the Eastern and Yinshan Blocks occurred at ~2.5Ga, characterized by anticlockwise P-T paths involving isobaric cooling, suggesting the origin of the metamorphism related to the underplating of numerous mantle-derived magmas. The major metamorphic event of the Khondalite Belt occurred at ~1.95Ga, and its metamorphic evolution is characterized by clockwise P-T paths involving near-isothermal decompression, which is interpreted as a result of collision between the Yinshan and Ordos Block to form the Western Block. The metamorphism of the Trans-North China Orogen occurred at ~1.85Ga, and is also characterized by clockwise P-T paths involving near-isothermal decompression, reflecting the final amalgamation of the united Western Block and the Eastern Block to form the coherent basement of the North China Craton. The metamorphism of the Paleoproterozoic Jiao-Liao-Ji Belt is featured by paired metamorphic zones of which the northwestern zone consists of the North Liaohe, Laoling and Fenzishan groups, metamorphism of which is characterized by medium-pressure-type clockwise P-T paths, whereas the southeastern zone consists of the South Liaohe, Jian and Jingshan groups, metamorphism of which is characterized by low-pressure-type anticlockwise P-T paths. Compared with the traditional 1:4,000,000 metamorphic map of China published in 1986, the newly compiled metamorphic evolution map of the North China Craton can be better used to reflect metamorphic histories of different tectonic units in the craton. Although magmatic arc, continental rifting and mantle plume models can all be applied to interpretations of the metamorphism of the Eastern Block with IBC-type anticlockwise P-T paths, a mantle plume model is favored because it can reasonably explain the presence of an 800km wide igneous province in which all rocks were nearly simultaneously emplaced at 2.60~2.50Ga, numerous komatiites or komatiitic rocks, biomodal volcanic rocks, domiform structures, etc. In the North China Craton, the exposures of typical high-pressure basic granulites with garnet-clinopyroxen-plagioclase-quartz assemblage and high-pressure pelitic granulites with kyanite-Kf-feldspar assemblage are only restricted to the northern segment of the Trans-North China Orogen and the southern segment of the Jiao-Liao-Ji Belt, and their formation was related to subduction and collision operative in these Paleoproterozoic mobile belts. The local ultrahigh temperature (UHT) metamorphism with anticlockwise P-T paths in the Khondalite Belt, represented by sapphirine granulites in the Daqingshan and Jining Complexes, most likely resulted from underplating of mantle-derived magmas during the post-collisional extension at ~1.92Ga, as indicated by the sapphirine granulites which are always in direct contact with ~1.92Ga basic dykes.