Abstract: To investigate further the working performance of flexural members of steel-reinforced high-strength concrete under monotonic loading, a full-range nonlinear analysis is made through the finite ribbon method based on flat section assumption. By computation, the moment-curvature and load-deformation relationships are obtained, as well as those among concrete strength, volumetric percentage of steel, load and deformation of a flexural member. It is obvious that a concrete member cracks in tensional area as the external load comes to 14% of its ultimate load or so. On the same loading condition the ductility of the member is less than that of conventional steel-reinforced concrete members. However, on the same deformation condition, the bearing capacity of the flexural members of steel-reinforced high-strength concrete increase obviously with the increasing volumetric percentage of steel.