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Reports that there is a gas-rich and well-charged petroleum system in the Kuqa Depression where Triassic and Jurassic source rocks play important roles. Distribution in an area of more than 10000 km² and with a thickness of up to 1000 m; Composition of dark mudstones, carbonaceous mudstones and coal seams containing 6%, 40% and 90% of TOC, respectively, mainly of humic organic matter; Statement that, as high-quality regional cap rocks, the Neogene and Eogene gypsum rocks and gypseous mudstones matched well with the underlying Neogene and Cretaceous-Eogene sandstones; Formation of the most favorable reservoir-seal assemblages in the Kuqa Depression; Formation of the Jurassic sandstones and mudstones into another favorable reservoir-seal assemblage; Shaping of the traps late in the fold-thrust belt, mainly fixed in the Tertiary-Quaternary, where ten structure styles have been distinguished; Reference to tge fact that these traps spread as a zone in N-S, are scattered like a segmental line in W-E and show tier-styled vertically; Statement that the best traps are gypsum-salt covered fault-bend anticlines related to the passive roof duplex; Characterization of this petroleum system by late accumulation; Distribution in the early Himalayan Movement of an accumulation of mainly gas condensate and oil in the outer circular region of the kitchen; Claim that in the middle and late Himalayan the gas accumulations mainly formed and were distributed in the inner circular region near the kitchen; Statement that the overpressure of gas pools is common and is formed by seal capacity of thick gypsum layers, extensive tectonic compression and large uplift; Suggestion that the well-preserved anticline traps underlying the high-quality regional cap rocks of the Tertiary gypsum rocks and gypseous mudstones are the main targets for the discovery of giant and medium-sized gas fields; Importance of the above conclusions for the petroleum geology theory and the exploratio