In　order　to　control　the　infrared　radiation　properties　by　adjusting　the　micro　morphology　of　SiC　particles,　we　analyze　the　radiation　characteristics　of　solid　and　hollow　SiC　particles　with　different　scales.　The　results　show　that　the　particle　size　has　a　great　influence　on　the　radiation　characteristics　of　SiC　spherical　solid　particles,　and　the　particle　thickness　directly　affects　the　amplitude　changes　of　extinction　and　scattering　absorption　peaks　of　SiC　spherical　hollow　particles　with　small　scale　(d=100nm).　©　2022　IEEE.