Splicing geometry model is a tool used to assist geometry teaching. It consists of multiple sets of spliceable rod-shaped components with connectors at both ends, which can be stably combined into three-dimensional shapes such as cubes and spheres. During the teaching process, students can intuitively feel the spatial structure of different geometric shapes by piecing them together with their own hands. At the same time, it is also possible to deepen the understanding of spatial geometry concepts by disassembling and reassembling, comparing the differences in features of different geometries. This teaching tool can transform abstract geometric knowledge into concrete operational practice, effectively cultivating students' spatial imagination and hands-on ability.