///In this paper, the sequence patterns in orogenic front uplift belt are discussed taking an example of the Chepaizi area, western Junggar Basin. Five key chronohorizons are identified in Mesozoic-Cenozoic sedimentary intervals (Tugulu Group of Lower Crataceous, Anjihaihe Group of Paleogene, Shawan Group and Taxihe Group of Neogene)in the study area. According to the features and orders of the sequence boundaries, two first-order sequences, three second-order sequences and four third-order sequences are divided. Controlled by the special orogenic front uplift slope depositional setting in foreland basin and multiple episodic thrusting processes, the Mesozoic-Cenozoic sequences show two contrasting segments of sequence architecture with only lowstand system tract and transgressive system tract in the Chepaizi area.