脑卒中后肢体痉挛（post stroke spasticity，PSS）作为脑卒中后常见的并发症之一，不仅严重影响患者的日常生活，对家庭及社会造成沉重负担，而且是脑卒中后高致残率的主要因素。在临床上，针刺疗法在PSS领域的应用最为广泛、效果最为显著，其操作简便易行，能够显著降低患侧肢体的肌张力。本文基于神经网络及相关调控机制梳理归纳了针刺疗法改善PSS的作用机制，为PSS的精准治疗、预后评估及临床应用转化提供了创新性理论框架。

Post-stroke spasticity (PSS), as one of the common complications following a stroke, not only severely impacts patients' daily lives and imposes a heavy burden on families and society but also serves as a major contributor to the high disability rate after stroke. Clinically, acupuncture therapy is the most widely applied and effective treatment in the field of PSS, owing to its simple and convenient operation, which can significantly reduce muscle tone in the affected limbs. This paper reviews and summarizes the mechanisms of action of acupuncture therapy in improving PSS based on neural networks and related regulatory mechanisms, providing an innovative theoretical framework for precise treatment, prognosis evaluation, and clinical application translation of PSS.