We　reported　the　new　synthesis　of　Sm2Co17　particles　by　a　microwave-assisted　combustion　(MACS)　method.　This　process　enables　the　controlled　decomposition　of　Sm(NO3)(3)　and　Co(NO3)(2)　into　SmCo-O　particles,　followed　by　calcium　reduction-diffusion.　This　SmCo-O　particle　provides　an　approach　for　achieving　high　magnetic　properties　in　Sm2Co17　magnetic　materials.　The　rhombohedral　Sm2Co17　particles　can　be　incorporated　into　epoxy　resin　and　oriented,　displaying　a　square-like　hysteresis　loop.　The　particles　display　magnetic　properties　at　room　temperature,　with　a　saturation　magnetization　of　112.3　emu/g,　coercivity　of　5.6　kOe,　and　a　maximum　energy　product　of　9.4　MGOe.　This　method　improves　the　synthesis　efficiency　of　rare　earth　cobalt-based　nano-materials,　expands　the　synthesis　scope,　and　provides　ideas　for　the　synthesis　and　applications　of　other　rare　earth　nano-materials.