With　development　of　integration　requirements　for　things＇　information　based　on　different　connection　technology　in　Internet　of　Things,　higher　level　connection-technology　independent　protocols　are　needed　to　shield　different　connection　technologies.　Things　management　protocol　is　one　of　these　protocols　and　can　be　used　to　exchange　things＇　information.　Architecture　of　Internet　of　Things　and　necessity　of　things　management　protocol　are　discussed.　A　SOAP-based　things　management　protocol　is　designed　and　implemented,　including　operations　supported,　interface　definitions　for　these　operations,　implementation　structure　and　processing　for　this　protocol.