Abstract: The Chepaizi-Mosuowan (Chemo) paleo-uplift of N-E extending was shaped with the uplifting of hinterland of Junggar basin during the Mid-Late Jurassic, which changed the structural framework of monoclinal hinterland of the basin, forming quite a few lithostratigraphic traps of Mid-Upper Jurassic distributed along both sides of Chemo uplift. These traps provided favorable places for oil-gas accumulation. While Himalayan tectonic movement made the north-side continuously rise and the south-side extremely sink, causing secondary adjustment of pre-formed reservoirs that underwent destruction in the north side, the south side structures were still preserved up to now. These structures should be as favorable domains for deep hydrocarbon exploration in hinterland of Junggar basin.

Key words: Junggar basin, Chepaizi, Mosuowan, uplift, tectonic monement