侏罗纪是中亚和中国西部地区沉积盆地主要形成时期 ,这表现在两个方面 :(1 )先期存在的盆地在此阶段沉积范围持续扩大 ;(2 )形成了许多新的侏罗纪沉积盆地。本文通过对劳亚大陆南部侏罗纪特提斯北带构造特征、诸盆地早 -中侏罗世岩相古地理和构造样式的分析 ,表明中国西部与中亚地区在侏罗纪时虽然都处于新特提斯北部被动大陆边缘 ,但由于受帕米尔弧向北推挤的影响 ,以及昆仑构造带与塔拉斯 -费尔干纳断裂和阿尔金大型走滑断裂的存在 ,这两个地区的侏罗纪盆地具有完全不同的构造起因。以塔拉斯 -费尔干纳断裂为界 ,西南侧中亚地区的侏罗纪沉积盆地主要是由新特提斯北部大陆边缘的被动伸展形成 ;东北侧中国西部的侏罗纪沉积盆地则主要发育于区域性挤压构造背景之下 ,形成的主要机制是重力陷落。此外 ,沿塔拉斯 -费尔干纳断裂还存在几个侏罗纪的走滑拉分盆地。中国西部与中亚地区侏罗纪盆地的不同成因特征对盆地的比较研究和寻找侏罗系烃源岩都具有重要意义 Jurassic is the main period of sedimentary basin formation in Central Asia and western China, which is manifested in two aspects: (1) the sedimentary scope of pre-existing basins continues to expand at this stage; (2) many new Jurassic sediments are formed basin. Based on the tectonic features of the Jurassic Tethys northern belt in the southern Lao-Eurasian continent and the analysis of the lithofacies palaeogeography and tectonic styles of the Early-Middle Jurassic in these basins, it shows that although both the Late Triassic and Central Asia were in the Neotote during the Jurassic However, due to the northward thrust of the Pamir arc and the existence of the Kunlun Tectonic Belt and the Taras-Fergana and Altun strike-slip faults, the Jurassic Ji Basin has completely different structural causes. Based on the Taras-Fergana fault, Jurassic sedimentary basins in Central Asia in the southwestern margin are mainly formed by passive stretching along the continental margin of the northern part of the Neo-Tethyan. Jurassic sedimentary basins in the western part of the northeastern China Mainly developed in the context of regional crustal structure, the formation of the main mechanism is gravity collapse. In addition, there are several Jurassic strike-slip subbasins along the Taras-Fergana fault. Different Genesis of Jurassic Basins in West China and Central Asia Comparative study of basins and the search for Jurassic source rocks are of great significance