In the title compound, [Cd(C(2)H(8)N(2))(3)](GeF(6)), the Cd(II) atom, lying on a 32 symmetry site, is coordinated by six N atoms from three ethyl-enediamine (en) ligands in a distorted octa-hedral geometry. The Ge atom also lies on a 32 symmetry site and is coordinated by six F atoms. The en ligand has a twofold rotation axis passing through the mid-point of the C-C bond. The F atom is disordered over two sites with equal occupancy factors. In the crystal, the [Cd(en)(3)](2+) cations and [GeF(6)](2-) anions are connected through N-H⋯F hydrogen bonds, forming a three-dimensional supra-molecular network.