Abstract: Two-dimensional（2D） spintronic devices,benefiting from their dangling-bond-free surfaces,can be stacked or grown into van der Waals heterostructures with ultrahigh-quality interfaces and high spin injection efficiency. This capability offers a promising approach to overcome the limitations of lattice matching and compatibility in conventional spintronics,thereby paving the way for significant physical and technological breakthroughs. This review systematically introduces various methods for preparing 2D materials and highlights recent advances in 2D ferromagnetic heterostructures,focusing on representative materials such as Fe₃Ge Te₂、Fe₃Ga Te₂ and WTe₂. Finally,a concluding outlook on the future development of2D spintronic devices are provided.