Bis(4-tertbutylphenyl)hydroxyketone and bis(1,2-di(4-tertbutylphenyl)-1,2-ethylenedithiolato) nickel complex (DYE-02) were synthesized and characterized by elemental analysis, 1H NMR and infrared spectra. The photostabilization of DYE-02 and its photostability to cyanine dye(Cy7) were studied. The results show that DYE-02 has a bathochromic shift absorbing in near infrared at 855nm. In addition, DYE-02 has better self photostabilization and better photostability to Cy7 than bis(1,2-diphenyl-1,2-ethylene dithiolato) nickel complex (DYE-01).