The　Internet　of　Things　is　becoming　increasingly　important　in　traffic,　medical　treatment,　and　other　industry　fields.　With　the　development　of　the　Internet　of　Things　technology,　lots　of　new　＂things＇＇　need　to　be　accessed　to　the　Internet　of　Things.　Currently,　Internet　of　Things　applications　adopt　multiple　methods　to　access　the　heterogeneous　devices.　How　to　provide　unified　access　means　for　those　＂things＇＇　is　a　fundamental　issue.　To　solve　this　problem,　a　new　method　is　proposed　in　this　article　to　design　a　reconfigurable　smart　interface　for　multiple　Internet　of　Things　devices.　The　IEEE　1451　standard　is　adopted　for　this　design,　and　it　comprehensively　specifies　the　smart　transducer　design　and　relevant　interface　protocol　to　implement　the　intelligent　acquisition　for　common　sensors　and　actuators.　Field　programmable　gate　array　is　adopted　for　the　implementation　of　this　design　to　reduce　consumption　of　resources　and　enable　the　reconfiguration　of　the　whole　system.　Performance　of　the　proposed　system　is　evaluated,　and　good　performance　is　achieved　in　practical　application　for　office　environment　monitoring.