The oldest continental crust material is 4.4 Ga detrital zircon from sedimentary rocks, and the oldest continental crust rocks are between 4.1 and 4.0 Ga with an outcrop area of ca.20 km2. The old continental nuclei of 3.9-3.6 Ga were exposed in various cratons,whereas the growth peak of the continental crust was in 2.9-2.7 Ga,and the global stable continental crust formed at~2.5 Ga,which is termed as cratonization. The continental crust is represented by Tonalite-Trondhejmite-Granodiorite(TTG),accounting for ~70% of the ancient continental crust by volume. The ancient continents show a high-grade gneiss region-granite-greenstone belt pattern(dome-keel pattern),which is different from the Phanerozoic oceanic-continental pattern,suggesting a difference in tectonic regime. The volcanic sedimentary sequence is the greenstone belt surrounding the high-grade gneiss region in stratified syncline form,the latter being relatively low grade metamorphic or un-metamorphic. In the early evolution of the Earth,the continent or ocean came first,the mechanism of the formation and growth of the continental remain unclear,when the surface land began to emerge in sea water,and the relation state of the ocean and continent during the Archean period remain controversial. In the Paleoproterozoic period,the entire world was in the extended stage for a long time,and the thick rift deposits and the associated great oxidation events may be the earliest geological period to initiate the study of palaeogeography. Taking the North China Craton as an example,the evolution of continental crust is briefly introduced in this paper.