The rapid increase in the global energy consumption and the environmental impact of traditional energy resources has led to tremendously increased research activities on clean and renewable energy sources during last decade. The sulfur and graphene composite cathode materials have great potential in improving the overall electrochemical performance of lithium ions rechargeable batteries.Sulfur cathodes generally suffer from fast capacity degradation and poor Coulombic efficiency originating from the dissolution of intermediate discharge products in the electrolyte. The polysulfide dissolution causes loss of active sulfur, which deteriorates electrochemical performances at low cycling rates. To enhance the electrochemical performance of sulfur highly conducting graphene has been dispersed in sulfur. Here we report a study on graphene-sulfur (S1-x Gx where x=0.1, 0.2, 0.3 &0.4 etc.) composites as a cathode fabricated by ball-milling technique for lithium sulfur batteries. The characterization of the composites has been performed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and RAMAN spectroscopy. The electrochemical performance of graphene-sulfur composite cathodes has been found to be enhanced and stable at deep charge-discharge. The high-capacity behavior through redox reactions occurs on surface and throughout the bulk. The major drawback of sulfur cathode is the dissolution in electrolyte while intercalation and de-intercalation of Li ions resulting in a low cycling stability in Li-S batteries and the electrochemical studies will be presented in detail.