Among　the　human　users　of　the　Internet　of　Things,　the　hearing-impaired　is　a　special　group　of　people　for　whom　normal　information　expression　forms,　such　as　voice　and　video　are　unaccessible,　and　most　of　them　have　some　difficulty　in　understanding　information　in　text　form.　The　hearing-impaired　are　accustomed　to　receiving　information　expressed　in　sign　language.　For　this　situation,　a　new　information　expression　form　for　the　Internet　of　Things　oriented　toward　the　hearing-impaired　is　proposed　in　this　paper,　and　the　new　expression　is　based　on　sign　language　video　synthesis.　Under　the　sign　synthesis　frame,　three　modules　are　necessary:　constructing　database,　searching　for　appropriate　sign　language　video　units　and　transition　units,　and　generating　interpolated　frames.　With　this　method,　text　information　could　be　transformed　into　sign　language　expression　for　the　hearing-impaired.