In order to study the boundary pressure of charge hole in warhead and the effects of the relative hole bulk on the temperature in hole, a model of charge hole was established by ANSYS software, and transformation characteristic of the hole was simulated with solid-liquid coupling method of LS-DYNA. The transformation process of hole under loading was studied as well. Results show that, with loading rates increasing, the relative bulk of hole lessens and the boundary pressure of the hole increases. However, when the load is up to the maximal load and maintained, their change is slow.