Inorganic　hydrated　salts　have　many　advantages　over　organic　phase　change　materials　(PCMs),　such　as　higher　thermal　storage　density,　low　cost,　non-toxicity　and　non-flammability.　In　this　research,　microcapsules　loaded　with　eutectic　hydrated　salt　(EHS)　as　the　core　material　was　fabricated　via　coacervation　method　at　room　temperature,　with　ethyl　cellulose/acrylonitrile　butadiene　styrene　as　the　shell　material.　EHS　consisted　of　sodium　sulfate　decahydrate　and　disodium　hydrogen　phosphate　dodecahydrate　with　a　mass　ratio　of　1:3　was　prepared　as　the　PCM　with　its　phase　change　temperature　of　29.3°C　and　phase　change　enthalpy　of　218.58　J/g.　The　chemical　structures　and　morphology　were　investigated　by　Fourier　transform　infrared　spectroscopy　and　scanning　electron　microscope.　Results　indicates　that　the　almost　spherical　microcapsules,　with　diameter　around　60　μm,　are　of　core-shell　microstructures　and　good　chemical　compatibility　of　the　core　and　shell　material.　Differential　scanning　calorimetry　results　shows　that　microcapsules　possess　a　high　latent　heat　(178.36　J/g)　and　excellent　thermal　stability　and　reliability,　which　are　suitable　for　thermal　energy　storage　and　management　in　practical　applications.　More　importantly,　the　simple　and　environmentally　conscious　way　of　this　study　may　be　extended　to　other　promising　inorganics@organics　PCMs　with　different　core-shell　structured　compositions.　©　2022　The　Author(s).　Published　by　Oxford　University　Press.　All　rights　reserved.