Novel ruthenium-acetylide dendrimers were synthesized by using tris(4-ethynylphenyl)amine as the bridging ligand up to the second generation by a convergent method. Multistep reversible redox behavior in the cyclic voltammogram and a bathochromic shift with an increase in the number of ruthenium species except for the second-gene ration dendrimer in the UV-vis spectra suggested an intramolecular interaction among ruthenium species.