“The Ballad of Mulan” is from the folk poetry collection, the image of Mulan who took her father's place in the army is known to every household in China. Based on the story of “The Ballad of Mulan”,Disney made the feature film “Mulan” and successfully conducted the second-degree creation. This paper summarizes the origin of Mulan's story and the adaptation in the form of drama, analyzing the plot reconstruction and character image reconstruction in the movie “Mulan”.