Abstract: The wavelet transform algorithm is capable of analyzing the frequency and energy spread of explosive vibration signals, and can break down and rebuild these signals based on various primary frequency bands. This method is extensively applied in analyzing the stability of blasting vibrations and managing mine safety production. Addressing the issue of the mine’s complex conditions making the blasting vibration signal easily disruptive, the wavelet transform algorithm is employed to examine the energy distribution in each frequency band of the 0-125 Hz vibration signal, focusing on blasting vibration data from southern part of Pulang Copper Mine. The HHT algorithm and the STFT algorithm are employed to analyze the energy distribution and attenuation law in areas of near and far blasting, respectively. Findings indicate variations in the rate and spread of energy attenuation between the near and far zones within the 0-125 Hz frequency spectrum. In the near zone, the primary vibrational frequency of the energy falls between 15.62 and <31.20 Hz, while in the far zone, it ranges from 46.87 to <93.75 Hz. Within the frequency range from 15.62 to <31.20 Hz, the energy ratio in the near zone surpasses that in the far zone by 14.1%, and in the frequency range from 46.87 to <93.75 Hz, it exceeds that of the near zone by 18.65%. The analysis of blasting vibration data from the roadway in southern part of Pulang Copper Mine, observed through this blasting method, reveals that within the 0-125 Hz frequency spectrum, the energy reduction rate near the blasting zone is rapid and dispersed, whereas in the distant zone, it’s gradual and compact. As the propagation distance grows, the energy from blasting vibrations lessens, yet the energy distribution becomes more focused. Findings from the analysis indicate that the wavelet transform algorithm accurately mirrors the energy spread of vibrational signals, offering a robust analytical approach for examining the structural integrity of subterranean structures when subjected to blasting vibrations.