环境一号卫星A/B星是我国自主研制的小卫星星座，其在轨稳定运行近5年，并稳定获取了大量高质量的观测数据，实现对这些观测数据的几何精校正处理，对发挥环境星宏观、动态的生态环境监测有着重要意义。本文首先分析了环境一号卫星参数特点以及环境一号卫星2级数据（系统几何校正后的数据）的几何特点。基于此，设计了环境一号卫星各载荷总体几何精校正方法流程以及charge-coupleddevice（CCD）相机自动几何精校正方法。实际运行数据表明，该方法可以较好地实现环境一号卫星各载荷数据的自动几何精校正，环境一号卫星CCD相机自动几何精校正图像精度可达到2个像素以内，同星不同载荷图像之间自动匹配方法可以获取小于1个像素的图像匹配精度。

HJ-1A/B satellites were developed independently by China，have operated well on-orbit for five years and acquired a large number of high-quality observation data. The realization of the observation data geometric precision correction is of great significance for macro and dynamic ecological environment monitoring. The paper analyzed the parameter characteristics of HJ-1satellite and geometric features of HJ-1satellite level2data（systematic geo-corrected data）. Based on this，the overall HJ-1multi- sensor geometric correction flow and charge-coupled device（CCD）automatic geometric precision correction method were designed.Actual operating data showed that the method could achieve good result for automatic geometric precision correction of HJ-1satellite data，automatic HJ-1CCD image geometric precision correction accuracy could be achieved within two pixels and automatic matching accuracy between the images of same satellite could be obtained less than one pixel.