Abstract: In the special action to the human body 3 d reconstruction, the three dimensional animation modeling environment prone to interference, lead to error rendering and modeling process. Put forward a kind of special body movement to the three dimensional animation modeling and rendering method improvement, building three-dimensional human body skeleton model, based on 3 d models and 2 d images corresponding relationship of the lines, and the camera calibration. Through the perspective projection relationship and the proportion of the human body skeleton, the model of different 3 d reconstruct animated feature point coordinate, and completes the high precision rendering. The experimental results show that the proposed method possesses high precision of 3 d modeling, improve the effect.