镁合金作为最轻的工程结构金属材料，在汽车、空天及国防领域具有广阔的应用前景。然而，镁合金析出强化能力弱、析出相易粗化且易诱发明显的强塑性倒置矛盾，制约了其应用进程。通过成分设计和制备优化，引入与基体完全共格的溶质原子团簇，并进一步调控其演化行为与稳定性，有望获得良好的强塑性匹配。本工作系统梳理了镁合金中溶质原子团簇的制备方法、演化与热稳定性，深入探讨了其对合金强度、塑性变形行为和耐腐蚀性能的作用机制，并从成分设计与性能调控角度展望了镁合金溶质原子团簇的发展方向。

As the lightest metallic structural material, magnesium (Mg) alloys hold promising application prospects in the automotive, aerospace, and defense industries. However, their widespread use is hindered by severe intrinsic limitations, including limited precipitation hardening capability, a tendency for precipitate coarsening, and a pronounced strength-ductility trade-off. Through strategic alloy design and processing optimization, fully coherent solute clusters can be introduced into the matrix. Further control over their evolution and stability offers a viable pathway toward achieving an improved balance between strength and ductility. This review systematically outlines the preparation methods, microstructural evolution, and thermal stability of solute clusters in Mg alloys. It also provides an in-depth analysis of the mechanisms through which these clusters influence alloy strength, plastic deformation behavior, and corrosion resistance. Finally, the future research directions for solute clusters in Mg alloys are discussed, focusing on compositional design and property optimization.