Spherical and monodisperse alumina powder was fabricated hy controlling the type, content and composition of emulsifiers under W/O emulsion method including combustion process. Aq. Al₂O₃ sol of pH =3 obtained from AI(N0₃)₃. 9H₂0 was used as water phase [W] and paraffin oil containing emulsifiers was used as oil phase [O]. Span80 (sp80) was used as a single-surfactant, [sp8O & tween8O(tw8O)] as mixed-surfactant, and n-butanol, n-octanol as well as n-dodecanol were used as co-surfactants. As results, under 2000rpm, average particle size of spherical alumina fabricated by adding 0.4 vol% n-butanol in emulsion containing [sp8O & tw80] of HLB, = S became smaller than that obtained from the only usage of [sp80 & tw8O] of HLB, = ? regardless of 0:W volumetric ratio and vol% emulsifiers. Under 4000 rpm and 0:W = 8:1.5, the aggregation and coalescence among particles fabricated by the usage of 2.5 vol% [sp80 & tw8O] of HLB,, = S were lower than those among particles prepared by the usage of 2.5 vol% sp80. Moreover, the lowest value of monodispersity, 1.03, in this study could be gained by the usage of 0.25 vol% n-butanol together with 2.5 vol% [sp80 & tw8O] of HLB,= S?.