diff --git a/agent-office/app/notifiers/telegram_lotto.py b/agent-office/app/notifiers/telegram_lotto.py
index 967c933..f900c7b 100644
--- a/agent-office/app/notifiers/telegram_lotto.py
+++ b/agent-office/app/notifiers/telegram_lotto.py
@@ -59,3 +59,102 @@ async def send_prize_alert(event: Dict[str, Any]) -> None:
         await send_raw(text)
     except Exception as e:
         logger.warning(f"[telegram_lotto] prize alert send failed: {e}")
+
+
+# ---------- 능동 시그널 알림 (urgent + digest) ----------
+
+_METRIC_LABEL = {
+    "sim_signal": "Sim Consensus",
+    "drift": "Strategy Drift",
+    "confidence": "Confidence",
+}
+
+
+def _format_urgent_signal(event: Dict[str, Any]) -> str:
+    """긴급 시그널 텔레그램 메시지 포맷."""
+    triggered = event.get("triggered_at", "")[:19].replace("T", " ")
+    results = event.get("results", [])
+    fired = [r for r in results if r.get("fire_level") in ("normal", "urgent")]
+
+    lines = [
+        "🚨 로또 능동 신호",
+        "",
+        f"[{triggered}]",
+        f"강한 시그널 {len(fired)}종 발화:",
+    ]
+    for r in fired:
+        label = _METRIC_LABEL.get(r["metric"], r["metric"])
+        v = r.get("value")
+        mu = r.get("baseline_mu")
+        sigma = r.get("baseline_sigma")
+        z = r.get("z_score")
+        if mu is not None and sigma is not None and z is not None:
+            lines.append(f"• {label} {v:.2f} (μ={mu:.2f}, σ={sigma:.2f}) z={z:.1f}")
+        else:
+            lines.append(f"• {label} {v:.2f}")
+
+    # drift 페이로드 — 어떤 전략이 변동했는지 한 줄
+    for r in fired:
+        if r["metric"] == "drift":
+            wn = (r.get("payload") or {}).get("weights_now") or {}
+            wp = (r.get("payload") or {}).get("weights_prev") or {}
+            if wn and wp:
+                diffs = {k: wn.get(k, 0) - wp.get(k, 0) for k in (set(wn) | set(wp))}
+                top = sorted(diffs.items(), key=lambda kv: abs(kv[1]), reverse=True)[:2]
+                detail = ", ".join(f"{k} {'+' if d>=0 else ''}{d*100:.0f}%p" for k, d in top)
+                lines.append("")
+                lines.append(f"요인: {detail}")
+            break
+
+    lines.append("")
+    lines.append(f"[자세히 보기] ({LOTTO_URL}/agent)")
+    return "\n".join(lines)
+
+
+def _format_signal_digest(digest: Dict[str, Any]) -> str:
+    """일일 요약 메시지. 발화 0건이면 빈 문자열 (발송 skip 신호)."""
+    fired = int(digest.get("fired", 0))
+    if fired == 0:
+        return ""
+
+    signals_list = digest.get("signals", [])
+    evaluated = digest.get("evaluated", 0)
+
+    lines = [
+        "📊 로또 일일 요약 (지난 24h)",
+        "",
+        f"평가 {evaluated}회 / 발화 {fired}회",
+    ]
+    for s in signals_list:
+        label = _METRIC_LABEL.get(s["metric"], s["metric"])
+        z = s.get("z_score")
+        when = (s.get("triggered_at") or "")[11:16]  # HH:MM
+        z_text = f"z={z:.1f}" if z is not None else "z=-"
+        lines.append(f"• {label:14s} {s['fire_level']:6s} {z_text}  ({when})")
+
+    weights_trend = digest.get("weights_trend") or {}
+    if weights_trend:
+        lines += ["", "전략 가중치 추세 (최근 8회 baseline):"]
+        for strategy, delta in sorted(weights_trend.items(), key=lambda kv: -abs(kv[1])):
+            arrow = "↑" if delta > 0.01 else ("↓" if delta < -0.01 else "→")
+            lines.append(f"  {strategy:12s} {arrow} {delta*100:+.0f}%")
+
+    return "\n".join(lines)
+
+
+async def send_urgent_signal(event: Dict[str, Any]) -> None:
+    text = _format_urgent_signal(event)
+    try:
+        await send_raw(text)
+    except Exception as e:
+        logger.warning(f"[telegram_lotto] urgent signal send failed: {e}")
+
+
+async def send_signal_summary(digest: Dict[str, Any]) -> None:
+    text = _format_signal_digest(digest)
+    if not text:
+        return  # 발화 0건이면 발송 skip
+    try:
+        await send_raw(text)
+    except Exception as e:
+        logger.warning(f"[telegram_lotto] digest send failed: {e}")
diff --git a/agent-office/tests/test_lotto_telegram_signal.py b/agent-office/tests/test_lotto_telegram_signal.py
new file mode 100644
index 0000000..8eaf3bd
--- /dev/null
+++ b/agent-office/tests/test_lotto_telegram_signal.py
@@ -0,0 +1,49 @@
+from app.notifiers.telegram_lotto import (
+    _format_urgent_signal,
+    _format_signal_digest,
+)
+
+
+def test_urgent_signal_format_basic():
+    event = {
+        "fire_level": "urgent",
+        "triggered_at": "2026-05-20T07:18:00.000Z",
+        "results": [
+            {"metric": "sim_signal", "value": 1.84, "z_score": 3.9,
+             "baseline_mu": 1.02, "baseline_sigma": 0.21, "payload": {},
+             "fire_level": "urgent"},
+            {"metric": "drift", "value": 0.18, "z_score": 3.0,
+             "baseline_mu": 0.06, "baseline_sigma": 0.04, "fire_level": "normal",
+             "payload": {"weights_now": {"gap_focus": 0.5, "hot_focus": 0.5},
+                         "weights_prev": {"gap_focus": 0.3, "hot_focus": 0.7}}},
+        ],
+    }
+    text = _format_urgent_signal(event)
+    assert "🚨" in text
+    assert "Sim Consensus" in text
+    assert "z=3.9" in text
+    assert "Strategy Drift" in text
+
+
+def test_signal_digest_format_with_signals():
+    digest = {
+        "evaluated": 6,
+        "fired": 2,
+        "signals": [
+            {"metric": "sim_signal", "fire_level": "normal", "z_score": 1.7,
+             "triggered_at": "2026-05-20T16:18:00Z", "payload": {}},
+            {"metric": "confidence", "fire_level": "normal", "z_score": 1.6,
+             "triggered_at": "2026-05-20T09:05:00Z", "payload": {}},
+        ],
+        "weights_trend": {"gap_focus": +0.12, "hot_focus": -0.02, "pair_bias": -0.08},
+    }
+    text = _format_signal_digest(digest)
+    assert "📊" in text
+    assert "지난 24h" in text
+    assert "z=1.7" in text
+
+
+def test_signal_digest_empty_returns_empty_string():
+    """발화 0건이면 빈 문자열 → 발송 자체 skip 가능."""
+    text = _format_signal_digest({"evaluated": 6, "fired": 0, "signals": [], "weights_trend": {}})
+    assert text == ""