Based on the existing pull-out tests on shear connectors, total five glued laminated bamboo (glubam)-concrete composite beams were tested under four-point bending loading to investigate the effect of connector type and numbers on the bending performance of composite beams. Three types of connector were selected in the current study including the screw connector，the notch connector and the pre-tightening notched connector. Test results show that all composite beams with different connectors exhibit high initial composite action and relatively stable composite action under the serviceability limit state. For the composite beams with screw connectors, the ultimate load carrying capacity is determined by the tensile strength of the glubam at the fingure joint. However, the ultimate load carrying capacity of the composite beams with notch connectors and the pre-tightening notched connectors mainly relied on the shear strength of the end connector. The semi-prefabricated composite beam with pre-tightening notched connectors shows the similar bending capacity when compared with the corresponding casting in-situ composite specimen, indicating a good prospect considering its high construction efficiency. The equivalent stiffness method predicted by Eurocode 5 overestimates the load carrying capacity of all specimens, and it is not suitable for glubam-concrete composite beams.