In the title compound, [Cd₂I₄(C₆H₁₄N₂)₂](n), there are two independent Cd(II) ions. One Cd(II) ion is coordinated in a slightly distorted octa-hedral coordination environment by four N atoms from two cyclo-hexane-1,2-diamine ligands and two iodido ligands. The other Cd(II) ion is coordinated by four iodido ligands in a slightly distorted tetra-hedral coordination environment. Two of the iodido ligands act as bridging ligands connecting Cd(II) ions and forming a one-dimensional polymer along [010]. In the crystal, N-H⋯I hydrogen bonds connect the one-dimensional structure into a two-dimensional framework parallel to (001).