对材料界面超高速自相似动态分层的反平面问题进行了解析分析．分层模拟为界面裂纹由零长度自相似扩展，扩展速度为跨音速或超音速．首先考虑运动集中载荷作用下界面动态分层的情况．利用界面裂纹自相似扩展的运动位错模型将问题归结为奇异积分方程，并求得解析解．分析了裂纹尖端的应力奇性，获得了动应力强度因子．最后，利用叠加原理给出了xn型载荷作用下界面动态分层的解． The anti-plane problem of the hypervelocity self-similar dynamic hierarchical material interface was analyzed and analyzed. The stratified simulation is that the interface crack is self-similar extended by zero length and the expansion speed is transonic or supersonic. Firstly, consider the dynamic stratification of interface under the action of concentrated load. Using the motion dislocation model of interface crack self-similar expansion, the problem is reduced to the singular integral equation and the analytical solution is obtained. The stress singularity of the crack tip is analyzed and the dynamic stress intensity factor is obtained. Finally, the solution of interface dynamic layering under xn-type load is given by means of superposition principle.