超高强度钢（UHSS）具有优异的综合机械性能，这引起了人们对其先进制造的浓厚兴趣。增材制造的 UHSS 具有独特的微观结构，为实现良好的机械性能提供了巨大的潜力。本文综述了超高强度钢增材制造（AM）的最新研究进展，重点关注增材制造超高强度钢的缺陷优化、微观结构性能调控以及先进辅助技术的应用。首先详细总结了UHSSs的性能起源，包括显微组织中不同合金元素和相组成对UHSSs力学性能的影响。进一步说明了用于制造 UHSS 的增材制造技术及其成形微观结构的特征，其中涉及激光粉末床熔合（L -PBF）、激光直接能量沉积（L -DED）和电弧增材制造（WAAM）。并对三种典型UHSS技术的研究进展进行了综述。此外，还回顾了超高强度钢的性能调控方法，主要是缺陷的优化和整个成形过程的调整。值得注意的是，讨论了当前 AMed UHSS 研究的不足以及未来发展的挑战。这项工作对于更好地科学理解 AMed UHSS 非常重要，并为 UHSS 制造的未来工作提供了重要且有意义的指导。

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Ultra-high strength steels (UHSSs) have excellently comprehensive mechanical properties, which has attracted significant interest in their advanced manufacturing. Additively manufactured UHSSs have a unique microstructure that provides significant potential to achieve good mechanical properties. This paper reviews the latest research progress in the additive manufacturing (AM) of UHSSs with a special focus on defect optimization, microstructure-property regulation and the application of advanced assisted techniques for additively manufactured UHSSs. The property origin of UHSSs is firstly summarized in detail, including the influence of different alloying elements and phase composition in the microstructure on the mechanical properties of UHSSs. The AM techniques used to fabricate UHSSs and the characteristics of their forming microstructure are further illustrated, which involve laser powder bed fusion (L-PBF), laser direct energy deposition (L-DED), and wire arc additive manufacturing (WAAM). The research progress on the three typical techniques for UHSSs is also reviewed. Moreover, the property regulation methodology of UHSSs is reviewed, mainly in the optimization of defects and the adjustment of the whole forming process. Significantly, the shortcomings of the present researches on AMed UHSSs and future challenges for development are discussed. This work is important for a better scientific understanding of AMed UHSSs and provides vital meaningful guidelines for the future work in UHSSs manufacturing.