A light control sheet includes a light control layer containing a liquid crystal composition, a pair of alignment layers sandwiching the light control layer, and a pair of transparent electrode layers sandwiching the light control layer and the pair of alignment layers. The alignment layers have a thermal weight loss rate of 4% or less when the alignment layer are heated at 130° C. for 30 minutes. The alignment layers contain a polymer compound having a skeleton composed of polyimide or a polyimide precursor. The alignment layers include a structure produced by reacting a polyamic acid with a compound having at least one functional group selected from the group consisting of an epoxy group, a carbodiimide group and oxazoline group.