The signal singularity of radio fuze reflects it be affected by surroundings. Since typical Fourier Transform Algorithm is difficult to detect the position of singularity and its distribution, a more accurate oriented method of signal singularity has been presented based on Wavelet Transform Algorithm. Simulation experiment for jamming identification of radio fuze has been conducted under this method. It showed that Wavelet technology can identify the jamming signal effectively and realize singularity accurate localization for the radio fuze. By this way, the anti-interference capability of the radio fuze has been improved sharply.