Abstract:Potato residue is a by-product of deep processing of starch and rich in dietary fiber.The research datas on dietary fiber from potato dregs were studied by literature analysis，the results showed that there were many studies on the extraction，modification and physic-chemical properties of dietary fiber，which were more soluble，better fiber structure and higher application value compared with soybean dregs，wheat bran，corn bran and other cereals.Based on the latest research results of home and abroad in recent 10 years，the preparation process，the physic-chemical characteristics，the biological active functions，and application of potato residue dietary fiber were summarized，and the problems existing in the current industry development were pointed out.This information might lead to a reference value in depth study，the comprehensive development and application of the potato residue dietary fiber.