The research about goat milk feeding with mangosteen flour as feed additive has been conducted at ud. atjeh livestock, milk processing technology and the laboratory of animal production technology faculty of agriculture, university of syiah kuala in darussalam banda aceh. it has been held for 2 months starting on march 30, until may 18, 2016. the study aims to determine the effect of goad (peranakan etawa) milkfeeding with mangosteen flour as feed additive on total microbial,ph and appearance. this study used 16 female goats peranakan etawa, with a randomized block design(rbd) consisted of 4 groups and 4 replications, each treatment consisting of of a (0% control, b (2.5% flour mangosteen rind) , c (5% of mangosteen peel flour), and treatment of d (7.5% of mangosteen peel flour). data were analyzed using anova (analysis of variance). parameters measured were total microbes, ph and organoleptic tests. the conclusion of this study showed thatthere are significant differences (p> 0.05) on