At temperatures of 10 K, 90 K and 300 K, the absorption spectra of YA1O3:Nd3+ are systematically examined in the region of 0.33-5.7 μm. The Stark's sub-levels by the action of the crystalline field are assigned. In addition, the temperature effect of a few spectra in the temperature range of 10-663 K are observed and some interesting results are obtained.