In addition to serving as an emergency escape tool, the ejection seat should also provide a comfortable seating environment for pilots during routine flights. Noise tests of the seat height adjustment system, which moves up and down, were conducted at both the human ear and the servo motor positions. Using psychoacoustic theory and open-source analytical tools, objective sound quality parameters, including loudness, sharpness, roughness, fluctuation strength are quantified. The results show that the specific loudness analysis of the ejection seat height adjustment noise more accurately reflects the frequency components that cause changes in the intensity of sensation to the human ear. The specific loudness was found to have higher proportions in both the 2–3 Bark low-frequency band and the 12–14 Bark mid-to-high-frequency band. During the seat base upward movement, no significant change was observed in the sharpness and roughness of the noise near the human ear compared to that near the motor. The noise sound quality analysis reveals the need for vibration reduction and noise reduction measures in the seat height adjustment system to meet human auditory comfort requirements.