We analyzed the imaginary part of frequency dependent dielectric constant&egr;″(&ohgr;)of amorphousLiNbO3at temperatures below the crystallization using the Mode coupling theory (MCT). We found that ion transportation behavior in amorphousLiNbO3can be explained well by the MCT &agr; relaxation predictions. We observed the &agr; relaxation scaling in&egr;″(&ohgr;)and as a result of which the &agr; relaxation stretched exponent&bgr;DCwas temperature independent with&bgr;DC≃0.6.©2000 American Institute of Physics.