介绍了光抽运铯原子钟计算机模型系统的基本结构体系 ,该计算机模型系统包括铯原子炉、抽运和检测激光、Ramsey微波作用腔、C场、荧光检测系统等程序模块。利用这个计算机模型系统 ,对光抽运小型铯原子钟在一些极端条件下的情形进行了研究 ,如抽运激光功率偏低 ,有效原子的速度分布特别窄 ,微波功率远大于最佳微波功率等条件下 ,得到了一些有意义的结果 The basic structure system of the optical pumping Cesium atomic clock computer modeling system is introduced. The computer modeling system includes program modules such as cesium atom furnace, pumping and detecting laser, Ramsey microwave cavity, C field and fluorescence detection system. Using this computer model system, we studied the optical pumping of small cesium atomic clocks under some extreme conditions. For example, when the pumping laser power is low, the effective atomic velocity distribution is particularly narrow, the microwave power is much larger than the optimum microwave power Under, got some meaningful results