The invention discloses a method for processing a plane figure image. The method comprises the following steps: extracting feature points from image edges after an image is preprocessed, then based on the feature points extracted from the image edges, reconstructing an accurate surface model; conducting accurate registration on the surface model and a series of color photos photographed of an object so as to obtain a 3D model; in accordance with RGB data and alpha channel data of the acquired 3D model, generating PNG format data of the 3D model, and extracting the RGB data and the alpha channel data of the 3D model, and generating BMP format to be inserted to a video; based on the acquired PNG format data of the 3D model, in accordance with a determined switching moment, generating an animation with background music and background pictures. According to the invention, the method can convert images to dynamic 3D models, then combines background music, background picture, and 3D effects in a perfect manner, and provides vivid sense of immersion for users.