In the structure of the title complex, (C(7)H(7)N(2)S)(2)[Cd(C(8)H(8)O(5))(2)]·6H(2)O, the Cd(II) atom is located on an inversion center and is O,O',O''-chelated by two symmetry-related 7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxyl-ate ligands in a distorted octa-hedral geometry. The 2-amino-benzothia-zolium cation links with the Cd complex anion via N-H⋯O hydrogen bonding. Extensive O-H⋯O and N-H⋯O hydrogen bonds involving lattice water mol-ecules occur in the crystal structure.