The article reviews the state-of-the-art in graphene spintronics, focusing on spin injection and transport, defect-induced magnetic moments, spin-orbit coupling, and spin relaxation. It highlights the potential of graphene as a spin channel material due to its room temperature spin transport and long spin diffusion lengths. The review covers experimental advancements, such as efficient spin injection, magnetic moments induced by defects and adatoms, and the theoretical understanding of spin-orbit coupling. It also discusses the challenges in achieving long spin lifetimes and spin relaxation, which are crucial for practical applications. The article concludes by discussing future research directions, including the development of spin transistors and spin logic devices, and the exploration of exotic physical properties in graphene and other 2D materials.The article reviews the state-of-the-art in graphene spintronics, focusing on spin injection and transport, defect-induced magnetic moments, spin-orbit coupling, and spin relaxation. It highlights the potential of graphene as a spin channel material due to its room temperature spin transport and long spin diffusion lengths. The review covers experimental advancements, such as efficient spin injection, magnetic moments induced by defects and adatoms, and the theoretical understanding of spin-orbit coupling. It also discusses the challenges in achieving long spin lifetimes and spin relaxation, which are crucial for practical applications. The article concludes by discussing future research directions, including the development of spin transistors and spin logic devices, and the exploration of exotic physical properties in graphene and other 2D materials.