对于强激光在非线性各向同性介质中的光束自聚焦现象得出的矢量波方程模型，使用自适应跟踪传输光束的算法程序进行了数值计算。数值计算显示，在光束自聚焦过程中，光波的轴上峰值强度是逐渐衰减的，且在传输过程中具有一定的空间周期性。得出了在自聚焦过程中没有光束崩溃的结论。 The vector wave equation model of strong laser beam self-focusing phenomenon in nonlinear isotropic medium is numerically calculated by the algorithm of adaptively tracking the transmitted beam. The numerical calculation shows that the peak intensity of the optical axis is gradually attenuated during the self-focusing process of the light beam, and there is a certain spatial periodicity in the transmission. It is concluded that there is no beam collapse during self-focusing.