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The Mesozoic strata of the continental margin in South China are widely exposed in Guangdong��including continental clastic sedimentary rocks mainly��and volcanic rocks partly�� The Upper Triassic--Upper Cretaceous can be divided into 2 mega-sequences��7 supper-sequences and 15 sequences��showing a process of transgression- regression during the sedimentary environment changed from marine to terrestrial�� The sea level change of the three grades controlled the development of sequences��supper-sequences and mega-sequences�� The Mesozoic �� --sequence developed in central and eastern Guangdong can be concluded for 3 types��including shallow water�� deep water and lacustrine basin types��and the shallow water type can be divided into types ��and ��further��