The Nd3+:La2Be2O5(Nd3+:BEL) is a biaxial crystal with monoclinic structure and space group C, C2/C. The fluorescence spectra are Polarization lines, the peak wavelength λ=1.07 μm for E∥X and λ=1.079 μm for E∥Y(b). The absorption,polarization fluorescence spectra (77 K°, 300 K°) and 4F3/2 fluorescent lifitime (τ=135±5 μs) of the Nd3+:BEL crystal were measured. The crystal is suitable laser material for LD pump based on the analysis of spectroscopic properties and comparson with Nd3+:YAG.