We present a Rehabilitation technique bonding thin steel angle at the defect fillet of H-shaped members. In previous paper, the design requirement for the rehabilitation was shown. A calculation procedure for torsion and warping constants of this member are shown. The accuracy and efficiency of this procedurewere demonstrated by a comparative study using twisting test and finite element analysis results. Inthis paper, the loading test on rehabilitated beam bonding thin steel angle at fillet of H-shaped section were performed. Also, 3D finite element analysisof the tests were executed. The efficiency and effectiveness of the rehabilitation technique were shown through the loading tests and analysis results.