This experimental study of prominent section bending behavior beam without shear connector provides bond capacity between concrete profile and initial stiffness of SC beam by comparing the test result with a theological analysis result and an ANSYS(common structural analysis program) analysis result. The compared result provides a fundamental study for practical use of efficient SC beam. Test result indicates $88\%-98\%$ rate of theological result in moment capacity and composition ratio shows $30\%-70\%$. In other words. the results are insufficient to make a complete composite action. Therefore, it is need to make pull shear connection of connection method