The spectroseopie nd lasing properties of Nd3+ in LaMgAl11O19 crystals were investigated experimentally. The absorption spectrum, fluorescence, polarization spectrum and fluorescence lifetime were measured. An advantage is that the concentration quenching of Nd3+ luminescence is quite weak, and the doping concentretion can be up to a higher value. Laser output has been obtained from the crystal at 1.054 μm.