This review summarizes recent research progress in sulfur cathodes, interlayers, and non-nucleophilic electrolytes, highlighting the main challenges and corresponding strategies for electrode material designs. . Rechargeable magnesium (Mg) batteries are promising candidates for the next-generation of energy storage systems due to their potential high-energy density, intrinsic safety features and cost-effectiveness. Among the various electrochemical couples, the combination of an Mg anode with a sulfur (S). . Magnesium–sulfur batteries are an emerging technology. With their elevated theoretical energy density, enhanced safety, and cost-efficiency, they have the ability to transform the energy storage market. This review investigates the obstacles and progress made in the field of electrolytes which are. . A magnesium–sulfur battery is a rechargeable battery that uses magnesium ions as its charge carrier, magnesium metal as its anode, and sulfur as its cathode. To increase the electronic conductivity of the cathode, sulfur is usually mixed with carbon to form a cathode composite. Notably, we emphasize a fundamental understanding of the structure-composition. .