Soundscape is a very important but weak link in the current national park landscape evaluation system, which is related to the fine management level of the national park. In this study, the Qianjiangyuan National Park system pilot area was taken as an example to evaluate the subjective pleasure of 53 kinds of national park soundscapes during daytime by using the questionnaire method. The objectively psychophysical indicators describing the soundscape quality were investigated and selected. The subjective and objective relationship between the two was established through multiple linear regression method, and the national park soundscape auditory quality evaluation model was obtained. The results show that:(1) different types of soundscapes presented different acoustic characteristics, and there were significant differences in loudness, sharpness and roughness. The highest loudness (5.829), sharpness (2.667), and roughness (0.018) of insect sound were found. The sharpness of birdsong was significantly different from the other six soundscapes. (2) It is suitable to use loudness, sharpness, roughness and volatility as objectively psychophysical indicators to describe the quality of soundscape. Among them, loudness is the main factor that affects the public's perception of the subjective pleasure of the soundscape of the national park, and the two are negatively correlated. (3) Using k-means clustering classification, it was found that the soundscape auditory quality of the national park was at a high level. Among them, the quality of insect sound was the highest (3.86), followed by birdsong (3.58), and talking sound was the lowest (2.43). The quality of natural soundscape was higher than that of artificial soundscape. (4) The soundscape auditory quality of the national park had the spatial distribution characteristics of high in the south, second in the north and low in the middle, while there was a strongly spatial overlap with the level of regionally ecological protection. The research results provide important reference for the future soundscape scientific management and planning and design after the completion of the national park system pilot, and also provide a method reference for the soundscape evaluation of other types of nature reserves.