The crystal structure of Cd(DBDA)(phen)2(H2O)(H2O)2 (1) (DBDA=2,2′-dimethoxy-1,1′-binaphthylene- 6,6′-disulfonate, phen=1,10-phenanthroline) composes of a cadmium center which is surrounded by four nitrogen atoms from 1,10-phenathroline as well as two oxygen atoms from water and sulfonate group of DBDA that also participates in H-bonding interactions to form 3D network. CCDC: 277920.