As an important part of regional synthesis, the local landscape is a crucial source of attractiveness for tourist destinations, in which soundscapes play a notable and special role. Many studies have investigated changes in the economic, cultural, and environmental aspects of tourist destinations under development, while little attention has been paid to how soundscapes change after tourism development. To this end, we chose the Lugu Lake Scenic Spot as a study area and explored the characteristics of soundscape changes by conducting a survey of residents in six villages at different stages of tourism development. The following conclusions were drawn: (1) Geophony did not obviously change under the influence of tourism. Biophony increasingly lost its influence, while anthrophony increased significantly, causing wide concern among residents. (2) The phenomenon of soundscape commercialization could be attributed to the impact of tourism maturation. Further, the representation of folk songs has undergone a great change. (3) In terms of spatial patterns, residents whose villages were in different states of tourism development had significantly different perceptions of soundscape transition. For example, the one village not undergoing tourism development was in its original soundscape phase. In the other villages, which were in the consolidation stage or the involvement stage, the sound environment had changed significantly, entering a tourism soundscape phase once there were tourism elements involved. Finally, we propose suggestions for enhancing the conservation of local soundscapes, with a focus on both building the tourism industry and enhancing the sustainable development of tourist destinations.