The　reciprocating　tension　and　compressive　stress　may　occur　sometimes　in　the　giant　columns　of　super　high　-rise　buildings　with　mega　frame　structure　during　strong　earthquakes.　At　present,　concrete　filled　steel　tube　mega　columns　with　several　cavities　are　adopted　towards　some　tall　buildings　with　mega　frame　structures　in　order　to　improve　the　seismic　performance　of　giant　columns.　In　order　to　study　the　performance　deterioration　of　this　kind　of　columns　under　reciprocating　tension　and　compression　load,　the　representative　rectangular　cavity　in　this　kind　of　columns　,　including　three　columns　with　steel　ratio　7.53%　and　one　column　with　steel　ratio　3.　77%　and　all　with　the　same　cross　section,　were　tested　under　reciprocating　tension　and　compression　loading.　Each　specimen　were　divided　mediad　into　two　half　parts.　One　half　was　welded　with　studs　and　the　other　half　without　studs.　Based　on　the　experiment,　load　bearing　capacity,　stiffness　and　its　deterioration　process,　the　stud　effect　and　failure　characters　were　comparatively　analyzed.　The　simplified　calculating　formulas　of　the　column　under　tension　and　compression　were　established,　and　the　calculated　results　agree　well　with　those　from　the　test.　The　results　show　that　setting　studs　in　rectangular　concrete　filled　steel　tube　columns　can　obviously　improve　working　performance　under　tension　and　compression　load.　Increasing　the　thickness　of　the　steel　plate　in　rectangular　steel　tubes　can　obviously　improve　their　constraint　capacity　on　the　studs,　so　as　to　improve　the　collaboration　performance　between　studs　and　concrete.