Abstract:The objective of this study was to evaluate the influence of different wall materials （gelatin，gum arabic，maltodextrin ）on the characteristics of β-carotene microcapsulation，which produced by the same process conditions.β -carotene microcapsulations were evaluate with regard to encapsulation efficiency，solubility，color intensity，new functional group between wall material and corn material，ζpotential，particle size，higher thermal stability.The results showed that there were no significant difference on encapsulation efficiency，new functional group between wall material and corn material，particle size and higher thermal stability.Gum arabic with conjugated system in structure had higher color intensity.Gelatin as protein could affect solubility because of hydrogen bond.Wall materials also influenced ζ potential distribution.At same time，X-ray diffraction showed no crystals were formed during any of the processes of three microcapsulation.But film-forming property of wall materials seriously affected the smoothness of microcapsulation surface.The result showed that wall materials largely affectd part of properties of β-carotene microcapsulation.So we should be more careful when choose wall materials.