The present invention discloses an OpenSceneGraph-based three dimensional animation manufacturing method. The method simulates the non main body target animation in a scene by controlling the regular geometric motion along a horizontal direction and a vertical direction of a two-dimensional picture in a three dimensional scene, and concretely comprises an original picture preprocessing step, a subgraph creation step, an advertising board addition step, a scene data updating step and a scene drawing step. According to the present invention, the preprocessing is carried out on a picture to remove the background, thereby obtaining a target picture with a transparent channel; in each frame, the corresponding relation of the texture coordinates and the vertexes is changed, thereby realizing a texture animation effect; by utilizing an advertising board technology, the orientation of the picture is changed automatically at the visual angle change, so that the picture always faces a screen, and the visual authenticity is improved; by utilizing the scene data updating step, each frame of animation data is updated; by utilizing the drawing step, the scene data is obtained, and each frame of scene is drawn. The method provided by the present invention enables the work of modeling and designing the motion of a fine model to be reduced, and enables the manufacturing difficulty and the manufacturing cost of the three dimensional animation to be reduced.