It was first reported the spectral properties of a low-temperature sintered transparent Yb:Y2-2xLa2xO3 laser ceramics. Yb:Y2-2xLa2xO3 laser ceramics have broad absorption band and large absorption cross-section of 4.0×10-20cm2 at wavelengths 977nm of the highest absorption peak. Its fluorescence lifetime is 1.1ms, and the emission cross-sections are 1.0×10-20cm2 and 0.7×10-20cm2 at wavelengths 1033nm and 1077nm, respectively. All the optical properties are similar to those of single crystals.