Photo-induced absorption (PA) spectra of [Pt(en)(2)][Pt(en)(2)X(2)] (SO2)(2).6H(2)O (X=Cl and Br) have been measured. Large excitation photon energy dependent changes were found in the features of the PA spectra. The excitation photon energy dependences are considered to be due to the difference between the relaxation processes of the charge transfer excitons and those of the higher energy excited states. Several new PA bands have been found.