In this article, a tetrairon ethanedithiolate complex [(mu-SCH2CH2S-mu) Fe-2(CO)(5)](2)(Ph2PC CPPh2) was reported. The title complex could be easily prepared by ligand exchange reaction of the starting material (mu-SCH2CH2S-mu)Fe-2(CO)(6) with Ph2PC CPPh2 and Me3NO center dot 2H(2)O in CH2Cl2/MeCN solutions at ambient temperature. The title complex was new and structurally characterized by NMR spectroscopy and X-ray diffraction analysis. Its molecular structure reveals that it consists of two butterfly diiron ethanedithiolate units linked together through Ph2PC CPPh2. In addition, intermolecular C-H center dot center dot center dot Ohydrogen bonds and pi-pi stacking interactions stabilize the solid state in the crystal packing diagram.