本发明提供的可降解镁合金药物洗脱支架，属于医疗器械技术领域，包括：包括间隔设置的多个支撑环，相邻两个所述支撑环之间通过多个连接键连接；所述支撑环为多个支架桥筋依次镜像连接构成的波浪形结构，所述支架桥筋两5 端分别具有朝向外侧凸起的弧形段，所述支架桥筋的宽度由两端到中间逐步递减。本发明的支架桥筋的宽度由两端到中间逐步递减，使两端处的强度大于中间处的强度，能够平衡两端处因应力集中受损而加快降解速率的情况，从而避免支架整体降解不均匀而过早失去支撑能力的缺陷。

The invention provides a degradable magnesium alloy drug-eluting stent, which belongs to the technical field of medical devices, comprising: a plurality of support rings arranged at intervals; the adjacent two support rings are connected through a plurality ofconnecting keys; The support ring is a wavy structure formed by a plurality of bracket bridge bars which are mirrored and connected in sequence, the two and five ends of the bracket bridge ribs are respectively provided with an arc segment which is raised towards the outside, and the width of the brackets bridge ribs gradually decreases from the two ends to the middle. The width of the bridge rib of the bracket of the invention gradually decreases from the two ends to the middle, so that the strength at both ends is greater than that at the middle. The utility model can balance the situation of accelerated degradation rate caused by the damage of stress concentration at both ends, thereby avoiding the defect that the overall degradation of the bracket is uneven and the support ability is lost prematurely.