Based　on　the　changing　of　the　community　as　the　main　body　to　the　combination　of　pension　from　the　traditional　family,　analysis　from　the　perfect　behavior　of　the　elderly　living　space　vector　angle　of　the　basic　system　concept　living　space　and　elements　from　the　system.　The　association　between　structure　and　the　importance　of　the　stock　of　old　Beijing　residential　status　of　the　problem　is　not　suited　to　the　elderly　living.　To　sum　up,　the　old　Beijing　residential　update　process　should　be　paid　attention　to　the　principles,　emphasizing　the　overall　living　space　of　the　new　pension　model　adaptation.