In this paper,Fe-doped lithium niobate crystals with different Li compositions are prepared.The composition and temperature dependence of the light-induced scattering in Fe-doped lithium niobate are studied.The results show that the crystals with the compositions lower than 49.0 mol%suffer from the serious light-induced scattering,but when the composition increases to 49.3 mol%the light-induced scattering is suppressed significantly,in particular at a composition of 49.8 mol%the light-induced scattering dis...