Abstract: The experiment of embedded steel L-bar in reinforced concrete under tensile load was carried out. The first important factor was the section steel model of the reinforcing L-bar，next was the depth of the embedded steel L-bar， and the third was the strength of the concrete. Through observing the failure process of the specimens，the failure model，the bond mechanism and the distribution of shear stress were discussed. The maximum value of binding shear stress appeared when the steel L-bar entered into the state of yielding.