Abstract: EPR spetra of eight paramagnetic binuclear clusters have been measured and classifiedinto two kinds. One is similar to those of mononuclear compound and is called "piecemode",the other manifests characters of spectra of binuclear cluster and is called "clustermode", Under effect of the temperature and solvent,the two kinds of spectra show normalparamagnetic and unnormal paramagnetic properties respectively. Some information providedby EPR spectra are discussed.

Key words: Cluster compound, EPR spectra, Binuclear cluster