Abstract: To evaluate the anti-jamming capability of a certain continuous wave doppler fuze, an experiment system for fuze irradiation is developed, and typical fuze experiments are performed under ultra-wide spectrum high power microwave (UWSHPM) irradiation. Experiment results show that the strongest coupling pose is when the fuze is vertically upward, and the bomb body axis and the antenna plane are perpendicular to the radiation field propagation direction. The bomb body is the main energy coupling channel. The higher the repetition frequency, the bigger the coupling voltage of the firing circuit. At 82 kV/m field strength, the coupling voltage of the repetition frequency in single, 10 Hz, 20 Hz and 50 Hz states are 66.5, 69.4, 71.5 and 74.6 V, respectively. At 157 kV/m field, the fuze will not be fired in any state. However, the field of UWSHPM can affect the capability parameters, such as demodulation voltage and working current.