Although millions of successful reinforced concrete structures (R.C.) are annually constructed world wide, there are large numbers of concrete structures that detoriate or become unsafe due to change in configuration. Externally bounded Fibre Reinforced Polymer (FRP) laminates and fabric are used to increase the flexural, shear strength successfully. This paper discusses the shear analysis of RC beam with Glass Fibre Reinforced Polymer (GFRP) wrapping. Shear strengthening using U -wrapping of glass fiber is studied as following 1) Conformation of the shear strengthening by single layer of U wrapping. 2) Study of the shear capacity of RC beams with increase in layers of GFRP wrappings. 3) The authenticity of available analytical method to calculate shear strength of GFRP RC beam is checked by comparing analytical and experimental results This paper gives the report of experimental investigation with load deflection curves. It is concluded that there is significant increase in ultimate strength of RC beam. Double wrapping is more effective. Delamination occurs in case of triple layers. Beams with GFRP wrapping are more ductile than companion beams. It is expected that strengthening can be used effectively in practice. In order to support this, practical applications are also included. © 2008 Thomas Telford, London.