Experiments　of　8　concrete-filled　steel　tube　(CFST)　dumbbell-shaped　columns　under　eccentrically　loads　are　introduced.　The　load　eccentricity　ratio　is　taken　as　the　experimental　parameter.　The　test　results　indicate　that　the　behavior　of　CFST　dumbbell　shaped　eccentrically-loaded　columns　is　similar　to　that　of　CFST　single　tubular　specimens.　The　analyses　of　the　ultimate　load-carrying　capacity　show　that　the　predicted　results　by　the　equivalent　area　method　are　too　conservative　and　those　obtained　from　truss　method　are　larger　than　the　test　results.　The　predicted　ultimate　load　by　a　modified　truss　method　proposed　in　this　paper　agrees　well　with　the　test　results.　The　modified　truss　method　is　shown　to　be　safe　and　promising　in　engineering　practice.