The broad bands at around 155nm for GdAl3(BO3)4:Eu, at 184nm for Ca4GdO(BO3)3:Eu, at 183nm for Gd2SiO5:Eu, and at 170nm for GdAlO3:Eu were observed. These bands were assigned to the charge-transfer (CT) transition of Gd3+-O2-. In the excitation spectrumof (Gd,Y)BO3:Eu, a broadened excitation band was observed in VUV region. It could be considered that this band was composed of two bands at about 160 and 166nm. The preceding band was assigned to the BO3 group absorption. The later one at about 166nm could be assigned to the CT transition of Gd3+-O2-, according to the result of GdAl3(BO3)4:Eu, Ca4GdO(BO3)3:Eu, Gd2SiO5:Eu, and GdAlO3:Eu. The excitation spectra overlapped between the CT transition of Gd3+- O2- and BO3 groups absorption. It caused the emission of Eu3+ to take place effectively in the trivalent europium-doped (Gd, Y)BO3 host lattice under 147-nm excitation.