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The stratigraphic succession of the subsurface Pliocene-Quaternary post-rift megasequence in the north-central part of the Nile Delta includes the rock units; Kafr El-Sheikh Formation (Early-Middle Pliocene), El-Wastani Formation (Late Pliocene), Mit-Ghamr and Bilqas formations (Quaternary). These rock units were herein analyzed according to the sequence stratigraphic principles to investigate the stratigraphic architecture and discuss the depositional events influencing the evolution of the given megasequence. Accordingly, seven 3rd order depositional sequences were encountered, of which six 3rd order seismic depositional sequences (sequences 1-6) are encountered in the Early-Middle Pliocene Kafr El-Sheikh Formation, whereas the seismic depositional sequence-7 includes the Quaternary rock units. Moreover, the sequences nos. 1 and 7 were further subdivided, on the bases of high-resolution sequence stratigraphy into 8 and 11 4 th order subsequences respectively. The results of the sequence stratigraphic analyses provided that the depositional evolution of the examined Pliocene-Quaternary megasequence represents a complete prograding depositional phase during the Nile Delta history. The lower part of Kafr El-Sheikh Formation (sequences 1, 2, 3 and 4) was deposited as a thick outer marine shelf succession over which the younger rock units were deposited. However, the depositional sequences nos. 5 & 6 of Kafr El-Sheikh subenvironments, stratigraphic section and genetic class.