In　this　experiment,　ZnO/brucite　composite　powder　was　prepared　through　the　mechanochemical　method;　further,　the　properties,　particle　morphology,　and　structure　of　the　composite　powder　were　characterized.　The　results　show　that　mechanical　grinding　action　can　promote　the　production　of　a　large　number　of　surface　ions　with　unsaturated　coordination　number　on　the　surface　of　brucite　and　ZnO　particles,　thereby　promoting　hydroxylation　of　the　particle　surfaces.　The　addition　of　NaOH　to　the　composite　system　can　also　aid　the　further　activation　of　the　surface　of　the　brucite　and　ZnO　particles　and　the　formation　of　more　associated　hydroxyl　groups.　Finally,　a　core–shell　composite　powder　is　formed　with　weak　forces　such　as　hydrogen　bonds　and　van　der　Waals　forces　as　the　connecting　bonds.　Copyright　©　2021　Shuai,　Wang,　Ren　and　Du.