As a typical mountainous city, undulating terrain in Chongqing creates a unique urban structure, and the richness of urban park soundscapes is enhanced as well. In this paper, one urban park, named ‘ShaPing Park’, was selected for the field measurement and questionnaire survey. Approximately 10 receiver points were arranged, with the consideration of both elevations and functional zones. The recreation zone and quiet zone were generally dominated by low frequency sounds, whereas the middle frequency sounds were more significant at the activity zone. Some special sounds, such as whipping tops, were observed in the park. People singing (65.1%) was the most annoying sound due to its unpleasantness. 57.2% of the respondents considered the acoustic environment as severely or relatively noisy, but only 44.5% of the interviewees regarded it comfortable or relatively comfortable. ‘Sound level’ (57.1%) and ‘personal interests’ (49.2%) were recognized as the major factors influencing personal sound preference, and the appropriate improvements of acoustical environment were identified as the priority in the studied urban park.