For meeting the requirements of comfort evaluation between the same level of automotive seats under vibration conditions, the subjective evaluation, body pressure distribution, and acceleration tests related to vibration comfort were conducted on three automotive seats, A, B, and C with 12 test participants under low-frequency vertical excitation with six different magnitudes (from 0.5 to 20 Hz with six magnitudes 0.2, 0.4, 0.6, 0.8, 1.0, 1.2 m/s2). Based on the analysis of body pressure distribution and acceleration test results, three objective indicators were obtained, such as the root-mean-square of average pressure changing rate, the root-mean-square of normal force changing rate and the root-mean-square of weighted acceleration. The correlation analysis was carried out on subjective and objective indicators by applying the non-parametric statistics method for verifying the consistency of subjective and objective evaluation results. Finally, the vibration comfort evaluation between the three automotive seats was realized by comparing the subjective and objective evaluation results.