导出了充满Ｋｅｒｒ介质的高Ｑ腔中非关联双模相干态场与Ｖ型三能原子相互作用系统的态矢量，通过数值计算，分析了Ｋｅｒｒ介质对原子能级布局概率的影响，绘出了原子布居概率的时间演化曲线，结果发现，原子布居概率受克尔效应的影响较大，随着克尔效应的增强在该曲线上附加一低频起伏． The state vector of the non-associated two-mode coherent state field in a high-Q cavity filled with Kerr medium and the V-type three-atom system is derived. By numerical calculation, the influence of Kerr medium on the atomic level layout probability is analyzed. The results show that the atomic population probability is greatly affected by Kerr effect, and a low frequency fluctuation is added to the curve with the increase of Kerr effect.