Abstract:The Huangshanjie Formation in the Kuqa depression of the Tarim basin is a set of strata with source, reservoir and cap coexistence, which is a potential target of oil and gas exploration in the future. However, at present there is a lack of detailed research on its sedimentary characteristics, which is not conducive to understanding the evolution of paleogeography. Therefore, based on the multiple outcrop sections, the sedimentary characteristics and the revealed geological significance were studied. The results show that: (1)In Huangshanjie Formation, the deep-up lower cycle is formed with the first and second members, the incomplete deep-up middle cycle is formed with the third member, and the upper cycle changing from shallow → deep → shallow is formed with the fourth member.; (2) The first and third members of the Huangshanjie Formation, formed with pebbly coarse clasts, are the sedimentary responses to two episodes of intense uplift in the provenance area during the Indosinian movement; (3) Event deposits caused by floods, earthquakes, etc. are developed in the Huangshanjie Formation; (4) In the 4th member, the dark mudstone is the rapid deposition of sufficient provenance under high accommodation;(5) After the deposition of the third member of the Huangshanjie Formation, regional tectonic uplift and tectonic-sedimentary transformation occurred, and the provenance also became quasi-plain; (6) There is a certain hiatus between the 4th Member and the underlying 3rd Member of Huangshanjie Formation and the overlying Taliqik Formation.