对库车坳陷主要探井和１３个露头剖面近１６０个中生界源岩样品镜质体反射率进行了实测分析，并利用地震测线人工井模拟计算镜质体反射率，初步明确了库车坳陷三叠—侏罗系源岩有机质成熟度的分布规律。依南２井三叠系—侏罗系源岩实测镜质体反射率为１０３％～１４３％，阳１井中、下侏罗统实测镜质体反射率为０９５％～１１０％各个露头剖面镜质体反射率存在很大差异，露头剖面成熟度区域上总体呈现西部高（Ｒｏ高达１８１％～１８３％）东部低（Ｒｏ在０５６％～０７９％），中部介于东西部之间，北部低（Ｒｏ在０５７％～０６８％）南部高的特点。在逆冲带，由于近晚期逆冲断层将深部烃源层推到浅部或地表，即使埋深很浅，实测镜质体反射率仍较高 The vitrinite reflectance of 160 Mesozoic source rocks from the main exploration wells and 13 outcrop sections in the Kuqa Depression were measured and measured. The reflectance of the vitrinite was simulated by seismic line artificial wells, Distribution of Maturity of Organic Matter in Triassic - Jurassic Source Rocks in Che Depression. The measured vitrinite reflectance of Triassic-Jurassic source rocks in Well Iin 2 was 103% ~ 143%. The reflectance of vitrinite in the middle and lower Jurassic measured in Well Yang 1 was 095% 1  10%  There are great differences in the vitrinite reflectance of each outcrop profile. The outcrop profile maturity region shows the highest in the west (Ro up to 181% ~ 183%) and low in the east (Ro = 0.56% ~ 079%). The middle part is between east and west and the northern part is low (Ro = 057% -068%). In the thrust zone, the measured reflectance of the vitrinite was still high even though the burial depth was very shallow due to the thrusting of the deep hydrocarbon source into the shallow part or the surface of the earth due to the late-late thrust fault