Abstract:Resistant starch is a new kind of dietary fiber resource，which has many health functions.It has attracted increasing attention because of its functional characteristics.Many studies have shown that resistant starch can reduce the risk of diabetes，colon cancer and other diseases.At present，about one third of the world′s population is suffering from malnutrition，such as"hyperlipidemia，hypertension and hyperglycemia"，overweight and obesity.It is urgent to guide people to develop healthy living habits.Previous studies showed that resistant starch is not digested and absorbed in the stomach and small intestine，but fermented by microbial flora in the colon to produce a variety of short-chain fatty acids and gases，and then play a prebiotic role.In this paper，the kinds of resistant starch （RS2，RS3，RS4）used to prepare microcapsules and their physicochemical properties were reviewed.They could effectively protect the growth of probiotics，served as sustained-release carriers，and had good extrusion and film forming quality.The preparation methods of resistant starch-based microcapsules were preliminarily analyzed.In addition，its applications in nutritional supplements，sustained-release carrier systems and as probiotics to promote the proliferation of probiotics were summarized in order to provide reference for the resistant starch industry in China.