Abstract: As a one-time miniaturized device used to generate and radiate electromagnetic pulse, the radio frequency explosive magnetic flux compression generator (RF MFCG) still has the bottle-neck in application because of the structure and properties of its radiation antenna. In order to solve this problem, the mechanism that the RF MFCG generates and radiates electromagnetic pulse is studied first in this paper. Then an RF MFCG miniaturization conformal antenna suitable for the actual demand is put forward on this basis. The antenna is designed to be a part of the body of the magnetic flux compression generator, which ensures the miniaturization and practicability of the device in terms of structure. The results of CST simulation and physical test show that the conformal antenna has good radiation characteristics in the frequency band of 0.5 GHz to 10.3 GHz, and it also can meet the practical demand of the RF MFCG in radiation performance.