1, flavor difference: sweet potato and cassava have obvious difference in taste and flavor. Sweet potato has a sweet flavor and soft texture, and cassava presents a starchy texture and is drier.

2, plant classification difference: sweet potato and cassava belong to different plant classification. Sweet potato is Dioscoreaceae plants, belonging to the potato vegetable, its main edible part is tuber. Cassava belongs to the Euphorbiaceae family of plants, its main edible part is the rhizome.