diff --git a/frontend/src/routes/study/cards-study/+page.svelte b/frontend/src/routes/study/cards-study/+page.svelte
index 95bd3aa..04cca6d 100644
--- a/frontend/src/routes/study/cards-study/+page.svelte
+++ b/frontend/src/routes/study/cards-study/+page.svelte
@@ -16,7 +16,7 @@
   import { goto } from '$app/navigation';
   import { api } from '$lib/api';
   import { addToast } from '$lib/stores/toast';
-  import { ArrowLeft, Repeat, Layers, Eye, BookOpen } from 'lucide-svelte';
+  import { ArrowLeft, Repeat, Layers, Eye, BookOpen, Flag } from 'lucide-svelte';
   import Button from '$lib/components/ui/Button.svelte';
   import Skeleton from '$lib/components/ui/Skeleton.svelte';
   import EmptyState from '$lib/components/ui/EmptyState.svelte';
@@ -140,6 +140,23 @@
     }
   }
 
+  // 학습 중 카드 내용이 이상하면 검수함(cards-review)으로 되돌림 (needs_review=true → 학습 큐에서 빠짐).
+  let flagBusy = $state(false);
+  async function flagCard() {
+    if (!current || flagBusy || busy) return;
+    flagBusy = true;
+    const c = current;
+    try {
+      await api(`/study-cards/${c.id}`, { method: 'PATCH', body: JSON.stringify({ needs_review: true }) });
+      addToast('success', '검수함으로 보냈어요 — 이 카드는 학습에서 빠집니다');
+      advance();
+    } catch (err) {
+      addToast('error', err?.detail || '신고 처리 실패');
+    } finally {
+      flagBusy = false;
+    }
+  }
+
   function setCramFilter(f) {
     if (fmtFilter === f) return;
     fmtFilter = f;
@@ -294,9 +311,20 @@
     <!-- 카드 -->
     <div class="flex flex-1 flex-col">
       <div class="flex flex-1 flex-col rounded-card border border-default bg-surface p-5">
-        <span
-          class="self-start rounded-full px-2.5 py-0.5 text-[10px] font-bold text-white {current.format === 'cloze' ? 'bg-accent' : 'bg-domain-engineering'}"
-        >{current.format}</span>
+        <div class="flex items-center justify-between gap-2">
+          <span
+            class="rounded-full px-2.5 py-0.5 text-[10px] font-bold text-white {current.format === 'cloze' ? 'bg-accent' : 'bg-domain-engineering'}"
+          >{current.format}</span>
+          <button
+            type="button"
+            onclick={flagCard}
+            disabled={flagBusy || busy}
+            class="flex items-center gap-1 text-[11px] text-faint transition-colors hover:text-warning disabled:opacity-50"
+            title="카드 내용이 이상하면 검수함으로 보냅니다"
+          >
+            <Flag size={12} /> 이 카드 이상해요
+          </button>
+        </div>
 
         <div class="mt-3 text-[10px] font-bold uppercase tracking-wide text-faint">
           앞 — {current.format === 'qa' ? '질문' : '회상'}