新疆喀什河吉林台水电站地区是地壳现代构造运动仍十分活跃的地区，工程的安全有可能会受到断层新活动的威胁，必须提供有关区域稳定性资料作为建设的依据，本文应用显微构造分析，同位素法测年，石英形貌法研究综合确定可能威胁工程的断层最后一次较强烈活动的时间为中更新世晚期，其活动的下限时间是１３－２０万年，上限时间为９－１５万年。结合模拟实验的结果指出，在继续遭受到区域构造应力的作用下，工程区会作整体的抬升，不会产生新的断裂系统和应力集中区，因此选取的工程场址是优良的。 Xinjiang Kashi River Jilintai Hydropower Station area is still very active in the crustal tectonic movement, the safety of the project may be threatened by the new activity of the fault, we must provide information on regional stability as a basis for the construction, the application of microstructure analysis, Isotopic dating and quartz topography study The last time that the most likely fault-threatening event was identified as the last mid-Pleistocene was the lower limit of its activity ranged from 130,000 to 200,000 years and the maximum time ranged from 9 to 150,000 years . Combined with the simulation results, it is pointed out that under the effect of the regional tectonic stress, the engineering area will be lifted up as a whole without generating new fracture system and stress concentration area. Therefore, the engineering site selected is excellent.