diff --git a/src/mixins/organization-search.js b/src/mixins/organization-search.js
index fd06b59..7a69e9d 100644
--- a/src/mixins/organization-search.js
+++ b/src/mixins/organization-search.js
@@ -143,7 +143,9 @@ export default {
       for (const node of tree || []) {
         const path = [...parents, String(node.id)];
         if (String(node.id) === String(target)) return path;
-        const matched = this.findOrgPath(target, node.children, path);
+        // 必须显式传 node.children || []：叶节点的 children 是 undefined，
+        // 传 undefined 会触发默认参数重新拿到整棵树，逐层重复扫描直到爆栈
+        const matched = this.findOrgPath(target, node.children || [], path);
         if (matched) return matched;
       }
       return null;