The molecular model is the demonstration model of school chemistry teaching, and it also has certain reference significance for the chemistry major in Colleges and universities. The carbon oxide crystal structure is a molecular crystal. For storage and transportation, this model adopts an assembly type. The carbon atoms are located on the diagonals and intersections between the vertices and the faces of the cube, and there are two oxygen atoms around each carbon atom. Assemble the components according to the drawings. After teaching, they will be disassembled and put back to the top for reuse. The wooden bottom plate should be kept dry to prevent deformation. and detailed images, restore the details of Chemical Molecular model, and give students the most profound influence in chemistry class.