Abstract: Traffic noise is one of main urban noise sources. The concept of traffic soundscape shows up after discussing the categories and contents of origin soundscape research and analyzing the characteristics of traffic. And what traffic soundscape want to study on is detailed proposed through the view of people, sound and environment. In order to stick out the specialties of traffic soundscape, a comparison about study objects and conditioning techniques between traffic soundscape and construction soundscape is coming up. Traffic soundscape occupies an important position in our daily life, which needs lots of work to build a proper evaluation system of it.