White light generation through phosphors excitation by UV-LED has become an important subject in WLED. In our study, compounds of SrSiO3¡GDy3+ white-emitting phosphors are synthesized via hydrothermal method. In this study, the effects of annealing temperature, annealing time, contents of Dy3+ on the relative emission intensity of the phosphors are judicially investigated. Meanwhile, WLED produces a plenty of heat energy to cause phosphors high temperature when WLED is excited by electrical energy. The emission spectra of the phosphors are investigated excited by Hg arc lamp (£f=365nm) under high temperature environment. Another, two distinct emission bands from SrSiO3¡GDy3+ phosphors are found to be around 480nm and 572nm when the phosphor is excited by Hg arc lamp(£f=365nm). The combination of these two emissions forms a white light like color to naked eyes, showing that SrSiO3¡GDy3+ presents to be a promising phosphor for applications in fabricating white-light-emitting diodes through UV pumping.