The asymmetric unit of the title complex, [Co(DMF)(6)](ClO(4))(2) (DMF = N,N-dimethyl-formamide, C(3)H(7)NO), consists of two half complex cations with the Co(2+) metal ions located on centers of inversion and two perchlorate anions. In the crystal packing, each Co(2+) ion is coordinated by six mol-ecules of DMF in a slightly distorted octa-hedral geometry. The crystal structure is mainly stabilized by coordinative, ionic and C-H⋯O hydrogen-bonding inter-actions.