A　novel　scheme　for　integrating　mobile　IPv6　and　multi-protocol　label　switching　(MPLS)　is　proposed　to　solve　the　problems　of　long　label　switching　path　(LSP)　establishment　latency　and　excessive　signaling　redundancy　in　existing　integration　schemes.　A　new　IPv6　hop-by-hop　option　header　named　MPLS　header　is　defined,　which　includes　some　information　about　setting　up　or　maintaining　LSP.　MPLS　header　is　put　in　the　binding　update　message　of　mobile　IPv6　protocol.　When　network　nodes　receive　this　message,　they　set　up　or　maintain　LSP　in　terms　of　MPLS　header.　Thus,　the　processes　of　binding　update　and　setting　up　or　maintaining　LSP　are　carried　out　simultaneously.　In　addition,　the　scheme　can　integrate　micro-mobility　protocols　naturally,　resulting　in　rebuilding　LSP　quickly　after　MH＇s　(mobile　host)　switching　within　a　region.　Simulation　analysis　shows　that　the　handoff　latency　in　the　scheme　is　smaller　than　that　in　the　existing　schemes,　and　with　increasing　the　distance　between　MH　and　its　correspondent　host,　the　increase　range　of　LSP　establishment　latency　of　the　proposed　scheme　is　less　than　that　of　existing　schemes,　which　means　the　optimization　is　realized.