Abstract: Auditory system is one of the essential features of city image. Among the identity systems of the city image, auditory sense is to identify information and perceive emotion. Furthermore, it can express feelings and create more harmonious environment. Whether the sound in the city is harmonious or not has a close relationship with the assessment and recognition of the city. In the city, it can be heard anytime and anywhere the sound of the nature, the sound of the construction work and the sound of the people, which play an important role in people’s life of the city. Therefore, it is an advisable option to protect the typically harmonious sound rhythm by reconstructing auditory environment and innovating auditory system so as to promote the city image.