Journey to the West represents the highest achievement of Chinese classical novels of gods and demons. It is not only a treasure of Chinese literature history, but also a source of endless inspiration for future generations. This paper uses Uproar in Heaven and Monkey King: Monkey King Is Back to the West as cases to analyze the specific ways of modern interpretation of classical novels by Chinese animation, which is embodied in the application of folk culture, that is, the unity of form, style and inner thought. On the basis of the colorful folk culture, the story level focuses on the resistance of freedom and the freedom to break the bondage before going to the West. The characters are simplified into Sun Wukong and the party that plays the role of suppression or restraint. The shape chooses the dominant style of folk opera, and at the same time adds modern elements. On the basis of the fusion of folk culture, the two works unify the story and characters in the free spirit, completing the successful attempt of modern interpretation of classical novels.