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Meihe basin is a typical fault depression basin with coal and oil shale�� The Meihe Formation is di- vided into 1 megasequence��2 supersequences and 4 three- order sequences by utilizing core��well logging and seis- mic data�� Among those three- order sequences�� sequence I is conglomerate member�� sequence II is lower coal mem- ber��sequence III is mudstone member and sequence IV is upper coal member�� The sequence stratigraphic frame- work and sedimentary- tectonic analysis reveal the sedimentary sequence evolution regularity of Meihe Formation in the studied area�� Sedimentary and sequence evolution in Meihe Basin show that sequence I was the initial faulting stage of the basin��dominated by coarse clastic sediments of alluvial fan and fan delta�� Sequence II was the faulting expansion stage of the basin��with more developed sediments of fan delta swamp and lacustrine�� Sequence III was the largest expansion stage of the basin��dominated by mudstone of deep lacustrine facies deposits�� Sequence IV was the shrinking stage of the basin��dominated by sediments of fan delta and lacustrine�� So the sequence evolution from sequence I to sequence IV disclosed the typical and complete sedimentary- tectonic evolution of the eastern ex- tension conditions from the initial faulting stage to shrinking stage��