This study proposes a 3D keyframe animation reconstruction method based on block symmetric stacking. This approach uses texture tracking rendering to smoothly rebuild animation sequences, fuzzy parameter optimization, and information improvement to increase image quality and block symmetric structures to dynamically create 3D animations. The experimental results showed that this method was superior to existing methods in terms of image fidelity, peak signal-to-noise ratio, and reconstruction efficiency. The research method is suitable for real-time 3D rendering scenes, such as animation production and virtual reality.