This work takes the mortise and tenon structure widely used in ancient Chinese architecture as the theme, and shows the characteristics, functions and types of mortise and tenon structure through cartoon-style MG animation. It not only shows the cultural charm and wisdom of ancient Chinese architecture, but also shows the integration of modern technology and traditional culture. We believe that in the future, the ancient and effective connection method of mortise and tenon structure will still be widely used in the field of modern architecture, and bring more aesthetic and practical value to people.