This algorithm aims to simplify the animation coloring process. Traditionally, digital painters need to manually color each frame for a line art animation, which is very time-consuming and labor-intensive. This algorithm only requires the painter to color the first frame, and it can automatically propagate the color to all subsequent frames, significantly improving work efficiency. The core of the algorithm is a novel inclusion relationship matching module that can accurately capture details such as object deformation and occlusion in animation, ensuring the accuracy of the coloring. This algorithm has developed a specialized dataset for training, which can fully exploit the algorithm's coloring capabilities. Compared to existing technologies, this algorithm demonstrates superior coloring quality and robustness.