Abstract:Freeze-thaw treatment is a commonly used physical modification method，and the number of freezethaw cycles is one of the most important factors affecting the freeze-thaw characteristics of starch.Many studies have found that freeze-thaw treatment can improve the oil absorption rate of starch，resulting in the transformation of starch crystal structure and the increase in crystallinity.In addition，the morphological factors of these changes are related to the number of freeze-thaw cycles.In this paper，the effect of the number of freeze-thaw cycles on the structural properties and physicochemical properties of starch was summarized，and the changes in the structure and properties of starch during freeze-thaw cycles could provide a theoretical basis for further research on modified starch.