Magnetic polygon splicing strip is an innovative teaching tool to assist geometry learning. It is composed of multiple strip-shaped components of different lengths, with strong magnets embedded at the edges to ensure stable splicing. These components can be freely combined to easily build common polygons such as triangles, parallelograms, trapezoids, etc. Students can use hands-on splicing to intuitively feel the relationship between edges and corners, greatly enhancing spatial thinking. The splicing strip is made of environmentally friendly plastic material, which is safe and durable, with smooth edges that do not harm hands. It is a powerful tool to stimulate interest in geometry learning and improve understanding ability.