diff --git a/Assets/Scripts/Skills/Effectors/PoisonSwampSpawner.cs b/Assets/Scripts/Skills/Effectors/PoisonSwampSpawner.cs
index 8f1cadb..c23deb1 100644
--- a/Assets/Scripts/Skills/Effectors/PoisonSwampSpawner.cs
+++ b/Assets/Scripts/Skills/Effectors/PoisonSwampSpawner.cs
@@ -35,14 +35,23 @@ namespace EerieVillage.Skills.Effectors
                 if (e == null) continue;
                 var h = e.GetComponent<Health>();
                 if (h == null || !h.IsAlive) continue;
+                // PD 지시 2026-05-15 — 공중 몬스터 (박쥐 등) skip · 독 늪 ground spawn 의도
+                if (e.IsFlying) continue;
                 var p = e.transform.position;
                 if (p.x < camPos.x - halfW || p.x > camPos.x + halfW || p.y < camPos.y - halfH || p.y > camPos.y + halfH) continue;
                 float d = Vector2.Distance(playerPos, p);
                 if (d < minDist) { minDist = d; nearest = e; }
             }
 
-            Vector2 spawnPos = nearest != null ? (Vector2)nearest.transform.position : playerPos;
-            spawnPos += data.OffsetXY;
+            Vector2 candidate = nearest != null ? (Vector2)nearest.transform.position : playerPos;
+            candidate += data.OffsetXY;
+
+            // PD 지시 2026-05-15 — ground Raycast 영역 ground 영역 영역 spawn (공중 spawn 차단)
+            // groundLayerMask = Layer 0 (Level Tilemap) + Layer 16 (Floating 발판)
+            int groundLayerMask = (1 << 0) | (1 << 16);
+            RaycastHit2D groundHit = Physics2D.Raycast(candidate, Vector2.down, 20f, groundLayerMask);
+            if (groundHit.collider == null) return;  // ground 미검출 — spawn 차단
+            Vector2 spawnPos = new Vector2(candidate.x, groundHit.point.y);
 
             // 독 늪 GO spawn (OnHitFxPrefab = FX_Venom_Swamp)
             GameObject swampGo;