Abstract: This study investigates the vibration characteristics of a mining dump truck’s cargo box. Through experimental methods, the vibration behavior of the cargo box under test conditions was analyzed, providing references for structural optimization design and improved cargo transport stability. First, following the national standard for vehicle ride comfort testing, an experimental model for whole-vehicle vibration testing of the mining dump truck was established. Subsequently, vibration tests were conducted on the entire vehicle based on this model, obtaining experimental acceleration data at various measurement points. On this basis, the study employed root mean square （RMS） values to analyze the cargo box’s vibration characteristics in the time domain and utilized the Fast Fourier Transform （FFT） method to examine its vibration response in the frequency domain. The results indicate that the mining dump truck’s cargo box primarily exhibits low-frequency vibrations at 1 Hz, 3 Hz, and 6 Hz. Additionally, the vibration energy intensity at the front section is lower than at the rear, while the left side demonstrates lower vibration energy intensity compared to the right side, revealing an asymmetric dynamic response.