Abstract: A new type of instant food was developed from Sweet Potato Starch,The processing method of this kind of new food was presented,The effects of different power inputs of micowave energy on the expansion of Sweet Potato Starch and the effects of different water contents of semi－finished products on the expansion of Sweet Potato Starch had been assayed.In the experiments nutrients were enriched .Apleasant flavour was obtained,Reference quality standards of this product is put forward.

Key words: Sweet Potato Starch Instant Intensify nutrients.