This project deals with the flexural behavior of composite beam. The composite beams consist of steel section, concrete slab or beam and shear connectors or epoxy adhesive bonding agent for the connection between steel and concrete. The steel section used in this project is Indian Standard Medium Beam [ISMB] section. The shear connectors used are headed stud for the connection between steel section and concrete slab and beam. Epoxy bonding agent also used for the connection for the replacement of shear connectors. The experimental investigation on the flexural behavior of composite beam is carried and gave good results. From the results, the composite beam [I section with concrete slab] has good rapport compare to that of composite beam [I section with concrete beam]. The composite beam connected with connectors able to withstand more weight compare to epoxy bonded composite beam.