Starch, comprising up to 70–80% of most cereal grains, is the primary source of energy inpoultry diets. Although it is generally believed that starch is well digested by poultry, lowtotal tract and ileal starch digestibility has been reported in some studies. The structureand composition of starch granules, their interaction with protein matrix, and their avail-ability after feed processing play important roles in the digestion of starch. There is clearevidence that starch digestion is highly correlated with its structural location within feed-stuffs and components associated with starch granule. Viscous non-starch polysaccharidesand feed technology practices such as pelleting, whole grain feeding and inclusion of fibrousmaterials also have significant influence on starch digestibility. The aim of this review is tofocus on factors affecting the digestion and absorption processes of starch in poultry. Theeffects of components associated with starch granule, soluble and insoluble dietary fibre,anti-nutrients and feed processing on starch digestion are also reviewed