A　new　type　of　threaded-sleeve　connection,　which　shares　excellent　characters　including　efficient　fabrication　and　good　bearing　capacity,　together　with　convenient　construction　or　deconstruction,　has　been　proposed　in　this　article,　and　it　can　be　utilized　in　mid-span　space　grid　structures.　To　evaluate　the　performance　of　threaded-sleeve　connection,　both　theoretical　analysis　and　numerical　simulations　are　conducted.　Apart　from　material　strength　of　the　connector　itself,　the　effect　of　other　factors　such　as　pitch　and　rounds　of　the　thread,　diameter　of　the　ball　of　connector,　and　wall　thickness　of　the　joints　and　the　threaded　sleeve　on　the　performance　of　threaded-sleeve　connection　is　discussed　as　well.　Then,　the　formulas　for　the　bearing　capacity　and　stiffness　of　threaded-sleeve　connection　are　developed　and　proposed.　In　addition,　the　performance　test　of　full-scale　connector　is　carried　out　to　verify　these　formulas.　It　is　illustrated　that　the　experimental　results　are　in　good　agreement　with　numerical　ones　which　verified　the　effectiveness　of　the　theoretical　calculation　method.　Thus,　the　formulas　enable　to　determine　the　strength　and　stiffness　of　the　proposed　connectors.