The crystal of (BEDT-TTF)4[Ni(CN)4] (BEDT-TTF: bis(ethylenedithio)tetrathiafulvalene) belongs to the triclinic P1BAR with the lattice constants of a = 10.994(2), b = 16.443(2), c = 9.703(1) angstrom, alpha = 97.85(1), beta = 115.15(1), gamma = 95.94(1)-degrees. In the crystal, there exists the face to face overlap of the BEDT-TTF molecules along the [201] direction. The intermolecular interaction by the short S...S contact is also observed along the [201BAR] direction.