At present, the United States is the best producer of 3D animation films. On the one hand, when producers from other countries are not experienced enough, they naturally have to learn from the production models of these masterpieces, and the style will be more similar, on the other hand, people have also been nurtured by these masterpieces to have a certain aesthetic tendency. As there are many Disney-style masterpieces, it is natural that works that lean towards this style are more likely to feel familiar and more likely to be considered masterpieces. In animated films, species other than people are given souls, and they take on the characteristics of animals and the personalities of people. The animal characters become human, allowing the audience to see the human in the characters, to feel familiar and feel believable, and thus to capture human emotions. Cartoon animals are never a reflection of real animals, they are a special group of animals from a mythical world, replicating human characteristics and weaknesses, unlike themselves in the animal kingdom.