The cast-cured under vacuum vibration method of charge production was introduced in the paper. With this method,the charge of HTPB bonded RDX has good density uniformity and no cracks. Results showed that adding some more insensitive explosives as nitroguanidine(NQ) or 3-nitro-1,2,4-triazole-5-one(NTO) to partially replace RDX could effectively improve the vulnerability of aluminized explosive,for example,small scale impact sensitivity was greatly lowered,reaction type of bullet test,Susan test was very low. These plastic bonded explosives(PBX)are suitable for warhead of high performance weapon.