The designer is inspired by the animal documentary and call on people to protect environment.The designer takes the panda as the design theme,and uses Gestalt psychology to construct gestalt theory in the audience's hearts when perceiving the poster. It expresses a shock in black and white, which also happens to be the giant panda's color. Then people will notice the scene symbolizing the destruction——people with shovels turn into eyes and bulldozers turned into noses and mouths are coming. He uses the silhouette to reassemble, and the simple design language is easier to recognize and spread.