Wang Meng's 'Butterfly' used the stream of consciousness technique. Stream of consciousness was a literary technique that described the flow of thoughts and emotions of the characters to show the theme and plot of the story. In Wang Meng's " Butterfly ", the author used the stream of consciousness to portray the protagonist's inner world and show the complexity and variety of the story. At the same time, Wang Meng's " Butterfly " also used a montage technique. Montage was a film technique that used different scenes to show the plot and theme of the story. In Wang Meng's " Butterfly ", the author used the montage technique to connect different plots and scenes to make the story more vivid and interesting. Wang Meng's " Butterfly " used the technique of stream of consciousness and montage to show a complex and interesting story through delicate psychological description and clever use of the camera.