To　resolve　the　impact　of　reinforcement　ratio,　eccentricity,　and　hybrid　reinforcement　area　ratio　on　the　failure　mode　and　lateral　displacement,　and　to　calculate　the　cross-sectional　bearing　capacity　of　concrete　columns,　the　component　test　method　is　adopted　to　conduct　eccentric　compression　on　six　columns　with　hybrid　reinforcement　of　glass　fiber-reinforced　polymer　(GFRP)　bars　and　steel　bars.　The　test　results　showed　that　all　specimens　failed　due　to　concrete　crushing,　and　with　high　capacity,　the　longitudinal　and　transverse　GFRP　remained　intact　before　failure.　With　appropriate　reinforcement,　the　hybrid　reinforced　column　achieved　better　ductility　and　GFRP　longitudinal　bars　gained　larger　strength.　During　the　test,　the　strain　distribution　of　the　cross　section　of　GFRP　longitudinal　bars　and　concrete　met　the　plane　section　assumption.　Under　the　same　load,　the　lateral　displacement　of　hybrid　reinforced　columns　decreased　with　increase　in　the　reinforcement　ratio,　and　increased　with　the　increase　in　eccentricity　and　hybrid　reinforcement　area　ratio,　i.e.,　GFRP-to-steel　bar　area　ratio.　Based　on　the　plane　section　assumption,　a　formula　for　hybrid　reinforced　columns　cross-sectional　bearing　capacity　calculation　is　established,　which　has　a　high　accuracy　and　can　be　a　reference　for　design.　©　2019,　Editorial　Department　of　Journal　of　HEU.　All　right　reserved.