At　present,　the　spatial　coupled　mechanism　has　been　widely　used　in　people＇s　production　and　life.　However,　the　type　synthesis　and　analysis　of　coupled　mechanism　is　still　at　the　primary　stage,　lacking　of　systematic　and　deep　research.　In　this　paper,　a　novel　2R1T　coupled　mechanism　is　proposed　and　analyzed.　Firstly,　the　mathematical　model　of　spatial　position　is　built　by　the　analytical　method,　and　the　positive　solutions　and　negative　solutions　of　the　kinematics　equations　are　established.　Then,　the　three　dimensional　model　of　the　mechanism　is　established　under　the　UG　software　and　the　digital　models　are　imported　into　ADAMS.　The　prototype　is　established　and　its　movement　is　simulated　in　ADAMS/View　environment.　From　the　results,　the　curves　of　change　of　position　can　be　got,　and　the　correctness　of　the　solved　negative　solutions　is　verified　by　comparing　with　the　theoretical　position.