In order to investigate the stability performance of dual-angle combined section speciments,axial compression and eccentric compression tests were conducted.The influence of prameter of speciments on ultimate bearing capacity were researched.A formula for axial compression and eccentric compression component was given and compared with results of normal coded.The rusults showed that all of the speciments are flexural buckling,eccentric compression has great influence on ultimate bearing capacity,lateral suppot can reduce the slenderness ratio of speciments and the bearing capacity of such component can improved by appropriately increasing the angle specification and the number of filler plate.Eccentric compression has a negative effect on bearing capacity,especially for weak axis.On the premise of structural requirements,the rigidity and connection way of lateral support have little impact on bearing capacity of such component.