Abstract: Based on soundscape ecology, this paper studies the edge effect of soundscape. Taking the West Lake Park in Fuzhou as an example, through site observation and measurement and using Semantic Differential Method, the study conducts a landscape evaluation of inside and outside the urban park boundaries. The main conclusions are as follows:(1) The edge of parks has an optimization effect on the soundscape, and in most cases, the soundscape edge effect in the outer side of the park is more obvious than that in the inner side, and this effect affects the overall psychological feelings to some extent. (2) The intensity of the soundscape edge effect varies in different edge conditions, the intensity order is as follows:topography > plant community > water body > square. (3) The main factors affected by soundscape edge effect include noise, atmosphere, aesthetics, emotion, comfort, pleasure and attraction. In this paper, the soundscape evaluation of urban parks is extended from the interior to the edge and the exterior of the park, thus providing a theoretical basis for the further research, planning and design of the urban park soundscape.