Abstract:Sodium alginate was used as wall material and black rice anthocyanin extract was used as core material to make microcapsules by microcapsule granultor.The anthocyanin embedding rate was chosen as detected index，the effects of needle diameter，the ratio of wall and core，sodium alginate concentration and CaCl2concentration on the embedding rate were detected.The optimum conditions were as follows：3 ∶1 wall core ratio，needle diameter of 0.45 mm，sodium alginate concentration of 4.0%，and CaCl2concentration of 3.0%.Meanwhile，the sustained-release properties and stability of black rice anthocyanin microcapsules were investigated.The results showed that microcapsules could exist for 4.0 h in the stomach simulate liquid，and release completely in intestine simulate liquid.It also proved that the anthocyanin microcapsules should be protected from light and atmosphere.