A serious of lutetium stabilized gadolinium aluminum garnet transparent ceramics {(Gd, Lu)3Al5O12∶Tb, Eu} were prepared by co-precipitation method combining vacuum sintering process. Then the transparent ceramics with the thickness of 1 mm were polished. Crystal structure of transparent ceramic samples was characterized by X-ray diffraction and the optical property was characterized by fluorescence spectrophotometer and UV near infrared spectrophotometer. After the process of sintering ceramics at high temperature, the ceramic samples still maintain stable garnet phase. In the emission spectra obtained by UV excitation of different samples. 313 nm was selected as the excitation wavelength of transparent ceramics and the strongest emission peak can be obtained. The emission light from green light to red light can be adjusted. After 313 nm excitation, all transparent ceramic samples have a millisecond decay time of Eu3+at 543 nm and 591 nm emission wavelengths.