To substitute the general burster used in FAE bomb,the new combination burster is designed. The fuel dispersion of the FAE bomb is analyzed on the detonation wave and the charge dimension and the detonation velocity and the burster-fuel weight ratio of the combination burster. Moreover,the fuel dispersion and the FAE cloud ignition were experimented under the condition of the PO fuel or the macroscopical solid fuel and the combination burster made of the high detonation velocity explosive 8701 and the slow detonation velocity explosive NQ. The experimental results show that the combination burster can efficiently control the FAE fuel dispersion and restrain the premature-combustion of the clouds,and the FAE clouds are basically strawhat shape and are reliably ignited. Thus it is feasible that the combination burster is used in the FAE bomb.