The morphology changes during preparing process of coacervate microcapsules was mainly investigated in the paper.Furthermore,the effect of morphology and loading of microcapsules on the release was extensively discussed.The experimental results showed that when wall material concentration was not more than 1%,coacervate microcapsules remained spherical and multinuclear structure during the whole preparing process.However,the microcapsules accumulated during coacervation and gelation process made the morphology of microcapsules turn irregular.Compared with loading,the effect of morphology of microcapsules on orange oil release was more significant.Overall,with excellent controlled-release characteristics of the coacervate spherical multinuclear microcapsules,the optimum wall material concentration was 1%.