In view of multiple attributes in chorus art, chorus performance must pay close attention to the audience’s cognitive origin and aesthetic demand, while fully displaying the voices of harmony and beauty. Through timely auditory stimuli and visual perception, it can excite and stimulate the audience’s cognitive and emotional experience, which creates conditions for listening to the music, understanding the works, and improve aesthetic feeling. For chorus performance, sound and shape should be well combined, which must be based on the style and theme of the work. In this paper, the related study was conducted in three aspects: the basic attributes of chorus art, audience’s appreciation and cognition process, and the implementation principle of the sound-shape combination. Finally, the experiments were conducted to show the analysis results of the sound and shape in chorus performance based on behavioural and cognitive perspectives.