Polypyridyl　ruthenium　(II)　complexes　exhibit　unique　photophysical,　photochemical,　electrochemical,　electron　transfer,　energy　transfer,　molecular　assembly　and　molecular　recognition　properties.　Ferrocenyl　group　has　many　attractive　features,　such　as　excellent　reversible　redox　properties,　high　solubility　in　organic　media,　and　high　modifiability　by　organic　synthesis　methods,　and　its　derivatives　remain　those　distinguish　properties　in　the　applications　of　functional　molecules.　The　ferrocenyl-functionalized　terpyridine　ligands　are　particularly　interesting,　since　this　type　of　ligand　displays　a　high　binding　affinity　to　many　metal　ions,　offering　the　thermodynamic　driving　force　for　stable　metallosupramolecule　formation.　Furthermore,　these　ligands　can　be　used　for　the　construction　of　geometrically　well-defined　functional　complexes　which　show　fascinating　properties　based　on　intramolecular　electron　and　energy　transfer.　This　review　focuses　on　the　research　progress　of　ferrocenyl-functionalized　ruthenium(II)　terpyridine　complexes,　specially　those　containing　extensively　conjugated　ferrocenylethynyl　and　ferrocenylphenylethynyl　substituents.　Combined　with　our　research　results,　optoelectronic　property　alterations　of　this　class　of　compounds　arosed　by　the　introduction,　number　variation　(one　or　two)　and　position　isomerization　of　alkynyl　are　discussed.