In　this　paper,　a　tracking　system　with　space　virtual　feedback　(SVF)　is　presented.　The　whole　tracking　system　is　closed　by　the　space　virtual　feedback　line　that　is　the　line　of　sight　(LOS),　but　the　parts　in　the　system,　such　as　the　tracking　subsystem　and　the　servo　subsystem,　are　in　the　state　of　open-loop.　Because　the　SVF　tracking　model　is　used,　the　correcting　loops　can　be　removed　in　this　system　architecture.　So　the　tracking　speed　and　accuracy　of　the　system　are　greatly　improved.　©　2008　Editorial　Board　of　Control　Theory　and　Applications,　South　China　University　of　Technology　and　Springer-Verlag　GmbH.