The Late Carboniferous —— Early Permian strata outcropped in Zongdi area， Ziyun County， GuizhouProvince， have four lithogenetic units with a total thinckness of 332．01 m 。are focused on detailedsedimentological study， accurate stratigraphic division and correlation in this paper． At least 6 types oflithofacies，1 1 microfacies wkh different environment significances are recognized． The Late Carboniferousstrata can be divided into 6 3rd—order sequences，nam ed Sequence CSq8，CSq9，? ? ，CSql3，respectively；andthe Early Permian strata into 4 3rd—order sequences， PSql， PSq2，PSq3，PSq4， respectively． Thecharacteristics and genesis of each third—order sequences are described and discussed．The third—order sequencesin various paleogeographic units and sedimentary environment can be correlated．