Acoustic signals are widely used in the prevention and control of geological disasters and play an important role in the monitoring and early warning of debris flow. In order to study the propagation law of ground sound, the attenuation characteristics of ground sound propagation are obtained by analyzing the attenuation mechanism of seismic wave propagation. At the same time, modeling and simulation are carried out according to different rock mass (granite, shale). Aiming at the energy attenuation caused by the coupling between the source and the ground during the continuous vibration, a spatial attenuation model is proposed, and the spatial attenuation function is introduced to describe its energy state. The results show that the model is the same as the theoretical analysis, and the accuracy of attenuation fitting is higher. This research can provide more accurate guidance for the accuracy and monitoring range of the sensor when the ground sound is monitored.