Abstract: From the equivalent circuit principle analysis on exp losive magnetic frequency generator, the influence and comparison of inductance variation discipline on time and frequency characteristic of generator operation current is analyzed. Result shows when the inductance reduce rate changes from fast to slow, breakdown resistance of generator improves and ope ration frequency increases. Then from the actual model, the inductance calcu lation is amended for the presence of armature to improve the precision o f the generator inductance calculation. At last, the possibility of the pulse radiation generated by explosive magnetic frequency generator is validated b y experiment.