采用高精度的ＴＶＤ有限体积方法及四步Ｒｕｎｇｅ－Ｋｕｔａ时间进展多步法，数值研究了喷流对锥体冲击流场的激波结构，同时利用“冻结粘性”技巧，减少了计算工作量，加速了迭代收敛。通过改变锥体距喷口的位置，得到了几种不同的激波系结构，并与自由冲击流场的波系结构进行比较。数值结果表明：所获得的冲击流场激波系结构十分清晰，包括喷流边界、反射激波、马赫盘、附体激波等。 Using the high-precision TVD finite volume method and the four-step Runge-Kuta time-varying multi-step method, the shock structure of jet impact flow field on cone was numerically studied. At the same time, the “freezing viscosity” Accelerated iteration convergence. By changing the position of cone from the spout, several different shock system structures were obtained and compared with those of free-impact flow field. The numerical results show that the structure of the shock system is very clear, including the jet boundary, the reflection shock, the Mach disk, the attached shock and so on.