Cesium　acetate　(CsAc)　has　been　successfully　intercalated　into　dickite　through　mechanical　milling　method.　The　forming　process　of　the　compounds　was　studied　by　means　of　thermo-gravimetric　(TG),　differential　thermal　analysis(DTA),　X-ray　diffraction　(XRD),　infrared　spectroscopy　(IR)　and　field　emission　scanning　electron　microscope　(FESEM).　The　XRD　pattern　shows　that　the　basal　spacing　of　dickite　(d(002))　is　increased　from　0.72nm　to　1.42nm,　which　proves　that　cesium　acetate　is　successfully　intercalated　into　the　interlayer　of　dickite.　The　new　band　at　360cm-1　suggests　that　cesium　acetate　possibly　forms　hydrogen　bond　with　the　inner　surface　hydroxyls　of　dickite.　The　new　band　3548　cm-1　reveals　H2O　is　also　inserted　into　the　interlayer　during　the　dickite　molecules　intercalation.　TG-DTA　results　show　that　the　intercalated　compound　can　exist　stably　below　110℃,　the　temperature　of　de-hydroxylation　for　the　intercalated　complex　sharply　is　decreased　from　597.6℃　to　418℃.　FESEM　images　show　clear　dickite　structure,　and　the　morphology　of　dickite　after　intercalation　does　not　change　a　lot.　From　theoretical　calculation,　it　is　deduced　that　cesium　acetate　molecule　and　water　molecule　are　bond　together,　and　are　intercalate　into　the　interlayer　of　dickite,　and　form　hydrogen　bonds　with　the　inner　surface　hydroxyls　of　dickite,　and　a　mechanism　model　of　cesium　acetate　intercalating　into　dickite　is　established.　©　2018,　Journal　of　Materials　Engineering.　All　right　reserved.