Abstract: To satisfy the application requirement of a high power electromagnetic pulse radiating system to a small light offground pulsed power supply, a miniature dynamic cascaded explosively-driven magnetic flux compression generator is investigated in this paper.Firstly, the structural parameters of the generator are introduced.Then its electrical parameter, input and output current are calculated by utilizing a numerical computation model based on equivalent circuit.The output characteristics of the generator was tested by experiments, in which the seed current was supplied by an initial power source based on a battery.It is found that a current pulse with a peak value of 49 kA and rise time of 5.2μs was generated on an inductive load of 1.44μH, while the energy amplification factor was 7.8.