diff --git a/B09_Estimation/draft/B09_Draft_Print_UI.ts b/B09_Estimation/draft/B09_Draft_Print_UI.ts
new file mode 100644
index 000000000..b4c1fc357
--- /dev/null
+++ b/B09_Estimation/draft/B09_Draft_Print_UI.ts
@@ -0,0 +1,22 @@
+/* =============================================================================
+ * B09_Draft_Print_UI.ts
+ * 인쇄 미리보기 등록 입구(PLAN 302-1 · 초안) — B09 셸이 `import.meta.glob("./draft/*_UI.ts")` 로 불러올 때
+ *   좌측 하단 고정 줄(`DRAFT.actions`)에 [인쇄 미리보기] 단추 → #/b09-print(`…_Print_Route`)
+ *   draft 폴더째 지우면 단추 · 길 · 서버 길이 함께 사라짐
+ * ========================================================================== */
+
+import type { RoutePath } from "@config/config_frontend";
+import { createButton } from "@ui/ui_template_elements";
+import { navigateTo } from "../../A00_Common/router";
+import { DRAFT } from "../B09_Estimation_UI_Tabs";
+import { ROUTE } from "./B09_Draft_Print_Route";
+
+DRAFT.actions.push(() => {
+  const button = createButton({
+    label: "인쇄 미리보기",
+    variant: "ghost",
+    onClick: () => navigateTo(ROUTE.path as RoutePath),
+  });
+  button.dataset.b09Print = "";
+  return button;
+});
diff --git a/resources/tester/test_302_1_print_frame.py b/resources/tester/test_302_1_print_frame.py
index a4d81b557..d64b69631 100644
--- a/resources/tester/test_302_1_print_frame.py
+++ b/resources/tester/test_302_1_print_frame.py
@@ -391,3 +391,13 @@ def test_수량_영역_PDF_시트_이름_지도_그림(quantity_bodies):
     missing = [s["name"] for s in body["sheets"] if s["name"] not in text]
     assert not missing
     assert sum(len(p.get_images()) for p in doc) >= 1  # 거리이정표 지도 그림이 들어감
+
+
+def test_B09_좌측_하단_단추는_초안_입구에서만():
+    ui = _text(DRAFT / "B09_Draft_Print_UI.ts")
+    assert "DRAFT.actions.push(" in ui and "navigateTo(ROUTE.path" in ui
+    assert 'label: "인쇄 미리보기"' in ui
+    shell = _text(ROOT / "B09_Estimation/B09_Estimation_UI_Shell.ts")
+    assert 'import.meta.glob("./draft/*_UI.ts", { eager: true })' in shell
+    dock = _text(ROOT / "B09_Estimation/B09_Estimation_UI_Dock.ts")
+    assert "DRAFT.actions.map((make) => make())" in dock and "Print" not in dock