Abstract:In this paper, arabic gum and maltodextrin were used as wall materials of dihydromyritin microcapsule and the composition of the wall materials was optimized by spry drying.The best ratio of dihydromyricetin to whole wall materials, the ratio of gum arabia and maltodextrin and the additive quantity of emulsifier were 15/85, 70/30, 0.5%, respectively.