The difference between amylose and amylopectin is:

Starch consists of two components:Amylose: A linear polymer of $\alpha$ -D-glucose with $C_1-C_4$ glycosidic linkages.Amylopectin: A branched polymer of $\alpha$ -D-glucose. The main chain has $C_1-C_4$ $\alpha$ -linkages, and branching occurs via $C_1-C_6$ $\alpha$ -glycosidic linkages.All linkages in starch are $\alpha$ -type.