目的　分析国产镍钛合金热记忆支架对食管恶性狭窄的治疗价值和经验教训。方法　不宜手术的食道癌患者 2 9例 (1例伴食管纵隔瘘 ) ,食道癌术后吻合口狭窄 6例 (其中 2例为术后吻合口复发 ) ,气管癌置入气管支架后侵犯食道 1例 ,X -线监视下置入镍钛合金支架。结果　 3 6例患者吞咽困难均有改善 ,有 3例 3月内于支架端及腔内肿瘤侵犯再次形成狭窄 ,1例溃疡型食管癌患者在操作中造成了食管粘膜下损伤。结论　镍钛热记忆支架应用方便、疗效可靠 ,但应注意操作方法和准确定位 Objective To analyze the therapeutic value and experience of malignant esophageal stenosis of domestic nickel-titanium alloy thermal memory stent. Methods 29 cases of esophageal cancer not suitable for surgery (1 case with esophageal mediastinal fistula) and 6 cases of esophageal cancer with anastomotic stenosis (2 cases were recurrence of anastomotic stoma), tracheal carcinoma invaded esophagus 1 Example, X-line monitoring into the nickel-titanium stent. Results Thirty-six patients had dysphagia, and three had stenosis again within 3 months after stent invasion and intraluminal tumor invasion. One patient with ulcerative esophageal cancer caused submucosal injury during operation. Conclusion NiTi thermal memory stent is easy to use and reliable, but should pay attention to the operation method and accurate positioning