Graphene-based composites have attracted significant research interest due to the exceptional properties of graphene, such as high electrical conductivity, mechanical strength, and thermal stability. This review discusses the synthesis methods, properties, and applications of graphene-based composites. The synthesis methods include bottom-up approaches like chemical vapor deposition (CVD) and top-down approaches like exfoliation and reduction of graphene oxide (GO). The properties of graphene include electronic, optical, thermal, and mechanical characteristics, which make it suitable for various applications. Graphene-based composites have been fabricated with inorganic nanostructures, organic crystals, polymers, metal-organic frameworks (MOFs), biomaterials, and carbon nanotubes (CNTs). These composites have been intensively explored in applications such as batteries, supercapacitors, fuel cells, photovoltaic devices, photocatalysis, and Raman enhancement. The review also discusses the advantages of graphene-based composites in these applications, including their high conductivity, mechanical strength, and thermal stability. The synthesis methods for graphene-based composites include ex-situ hybridization, in-situ crystallization, chemical reduction, electroless deposition, sol-gel methods, hydrothermal methods, electrochemical deposition, and thermal evaporation. The review highlights the potential of graphene-based composites in various applications, including energy storage, optoelectronics, and sensing. The properties of graphene-based composites, such as electrical conductivity, mechanical strength, and thermal stability, make them suitable for various applications. The review also discusses the challenges in the synthesis and application of graphene-based composites, including the need for efficient synthesis methods and the optimization of composite properties. The review concludes that graphene-based composites have great potential in various applications due to their unique properties and versatile synthesis methods.Graphene-based composites have attracted significant research interest due to the exceptional properties of graphene, such as high electrical conductivity, mechanical strength, and thermal stability. This review discusses the synthesis methods, properties, and applications of graphene-based composites. The synthesis methods include bottom-up approaches like chemical vapor deposition (CVD) and top-down approaches like exfoliation and reduction of graphene oxide (GO). The properties of graphene include electronic, optical, thermal, and mechanical characteristics, which make it suitable for various applications. Graphene-based composites have been fabricated with inorganic nanostructures, organic crystals, polymers, metal-organic frameworks (MOFs), biomaterials, and carbon nanotubes (CNTs). These composites have been intensively explored in applications such as batteries, supercapacitors, fuel cells, photovoltaic devices, photocatalysis, and Raman enhancement. The review also discusses the advantages of graphene-based composites in these applications, including their high conductivity, mechanical strength, and thermal stability. The synthesis methods for graphene-based composites include ex-situ hybridization, in-situ crystallization, chemical reduction, electroless deposition, sol-gel methods, hydrothermal methods, electrochemical deposition, and thermal evaporation. The review highlights the potential of graphene-based composites in various applications, including energy storage, optoelectronics, and sensing. The properties of graphene-based composites, such as electrical conductivity, mechanical strength, and thermal stability, make them suitable for various applications. The review also discusses the challenges in the synthesis and application of graphene-based composites, including the need for efficient synthesis methods and the optimization of composite properties. The review concludes that graphene-based composites have great potential in various applications due to their unique properties and versatile synthesis methods.