diff --git a/frontend/lib/registry/components/entity-search-input/EntitySearchInputComponent.tsx b/frontend/lib/registry/components/entity-search-input/EntitySearchInputComponent.tsx
index 8bdd5758..70785171 100644
--- a/frontend/lib/registry/components/entity-search-input/EntitySearchInputComponent.tsx
+++ b/frontend/lib/registry/components/entity-search-input/EntitySearchInputComponent.tsx
@@ -52,7 +52,8 @@ export function EntitySearchInputComponent({
   // 연쇄관계 설정 추출 (webTypeConfig 또는 component.componentConfig에서)
   const config = component?.componentConfig || {};
   const effectiveCascadingRelationCode = cascadingRelationCode || config.cascadingRelationCode;
-  const effectiveParentFieldId = parentFieldId || config.parentFieldId;
+  // cascadingParentField: ConfigPanel에서 저장되는 필드명
+  const effectiveParentFieldId = parentFieldId || config.cascadingParentField || config.parentFieldId;
   const effectiveCascadingRole = config.cascadingRole; // "parent" | "child" | undefined
 
   // 부모 역할이면 연쇄관계 로직 적용 안함 (자식만 부모 값에 따라 필터링됨)