In the paper,moxa leaf powder solution microcapsules were firstly prepared by solvent evaporation method with ethyl cellulose as shell material.Orthogonal experiments showed that the best processing conditions of the microcapsules was: ethyl cellulose︰sandwich material︰ethyl acetate︰aqueous phase=1 ︰2.5︰13︰130(mass ratio),stirring at 1500 r/min,dispersed of 15 min,water/oil mixed of 10 min.Scanning electron microscopy(SEM)were used to characterize of microcapsules.The particle size wad spherical,dispersibil...