The nonlinear response of delaminated buckling beams with different delamination locations under axial periodic excitation was examined through experimental investigation. The time history of displacement, phase diagrams and spectrum are described and discussed. The research demonstrates the delaminated buckled beam performs nonlinear dynamic motions, such as period, perioddoubling as well as chaos. The experimental results show that in the case of the same delamination length, the delaminated location greatly affect the dynamic characteristics of delaminated buckled beam. And when the central of the delamination region is closer the midspan of beam, the first order frequency of delaminated beam is lower. Moreover, the delaminated buckled beam more easily experiences the periodic motion, doubling periodic motion and chaotic motion at lower excited frequency and loads.