“Sr6GdAl (BO3) 6: xDy3+fluorescent powder was prepared by high-temperature solid-phase method, and its crystal structure, luminescence characteristics, energy transfer mechanism, fluorescence attenuation curve, color coordinates, and temperature dependent spectra were studied. Under UV excitation, the emission peak of the sample at 315 nm originates from the 6P7/2 → 8S7/2 energy level transition of Gd3+; The emission peaks at 484 nm and 578 nm originate from the 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 energy level transitions of Dy3+, and the Sr6GdAl (BO3) 6: xDy3+phosphor emits white light. As the concentration of Dy3+doping changes, the color coordinates of the sample are closer to the "ideal white light point" (x=0.33, y=0.33) in the CIE chromaticity diagram. There is energy transfer from Gd3+to Dy3+in the sample, with an energy transfer efficiency of up to 90.59%. The sample exhibits a negative thermal quenching effect, with a luminescence intensity of 103.6% of room temperature at a temperature of 543 K, demonstrating good thermal stability. The results indicate that Sr6GdAl (BO3) 6 is a potential fluorescent powder for UV health lamps, and Sr6GdAl (BO3) 6: xDy3+is a white fluorescent powder that can be excited by UV light.”