diff --git a/services/image-render/main.py b/services/image-render/main.py
index 25dad49..72da45e 100644
--- a/services/image-render/main.py
+++ b/services/image-render/main.py
@@ -3,11 +3,14 @@ from __future__ import annotations
 
 import asyncio
 import logging
+import os
 from contextlib import asynccontextmanager
 
+import redis.asyncio as aioredis
 from fastapi import FastAPI
 
 import worker
+from _shared.heartbeat import heartbeat_loop
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s %(name)s %(levelname)s %(message)s")
 logger = logging.getLogger(__name__)
@@ -16,15 +19,19 @@ logger = logging.getLogger(__name__)
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     worker_task = asyncio.create_task(worker.worker_loop())
+    hb_redis = aioredis.from_url(os.getenv("REDIS_URL", "redis://192.168.45.54:6379"), decode_responses=False)
+    hb_task = asyncio.create_task(heartbeat_loop(hb_redis, "image-render", "render", worker.stats))
     logger.info("image-render lifespan 시작")
     try:
         yield
     finally:
-        worker_task.cancel()
-        try:
-            await worker_task
-        except asyncio.CancelledError:
-            pass
+        for t in (worker_task, hb_task):
+            t.cancel()
+            try:
+                await t
+            except asyncio.CancelledError:
+                pass
+        await hb_redis.aclose()
         logger.info("image-render lifespan 종료")
 
 
diff --git a/services/image-render/tests/test_worker.py b/services/image-render/tests/test_worker.py
index 207b737..3e551da 100644
--- a/services/image-render/tests/test_worker.py
+++ b/services/image-render/tests/test_worker.py
@@ -67,3 +67,25 @@ async def test_poll_once_returns_false_on_timeout(monkeypatch):
     assert handled is False
     fake_queue.ack.assert_not_awaited()
     fake_queue.fail.assert_not_awaited()
+
+
+# ----- heartbeat stats 카운터 -----
+
+class _OneJobQueue:
+    def __init__(self): self.acked = False
+    async def dequeue(self, timeout=5):
+        if self.acked: return None
+        return ({"job_type": "flux_generation", "task_id": "t1", "params": {}}, b"raw")
+    async def ack(self, raw): self.acked = True
+    async def fail(self, raw, payload): pass
+
+
+@pytest.mark.asyncio
+async def test_poll_once_increments_jobs_done(monkeypatch):
+    worker.stats.jobs_done = 0
+    monkeypatch.setattr(worker, "run_flux_generation", lambda task_id, params: None)
+    handled = await worker.poll_once(_OneJobQueue())
+    assert handled is True
+    assert worker.stats.jobs_done == 1
+    assert worker.stats.busy is False
+    assert worker.stats.last_job_at is not None
diff --git a/services/image-render/worker.py b/services/image-render/worker.py
index 03ab021..9b43666 100644
--- a/services/image-render/worker.py
+++ b/services/image-render/worker.py
@@ -18,6 +18,7 @@ from providers.gpt_image import run_gpt_image_generation
 from providers.nano_banana import run_nano_banana_generation
 from providers.flux import run_flux_generation
 from _shared.reliable_queue import ReliableQueue
+from _shared.heartbeat import WorkerStats, utc_now_iso
 
 logger = logging.getLogger(__name__)
 
@@ -25,6 +26,8 @@ REDIS_URL = os.getenv("REDIS_URL", "redis://192.168.45.54:6379")
 QUEUE_KEY = "queue:image-render"
 PAUSED_KEY = "queue:paused"
 
+stats = WorkerStats()
+
 # string names so `unittest.mock.patch` / `monkeypatch.setattr` on `worker.<name>`
 # is correctly intercepted by getattr(sys.modules[__name__], ...)
 _DISPATCH_TABLE = {
@@ -59,14 +62,21 @@ async def poll_once(queue: ReliableQueue) -> bool:
     if result is None:
         return False
     payload, raw = result
+    stats.busy = True
     try:
         await asyncio.to_thread(_dispatch, payload)
     except Exception:
         logger.exception("dispatch unhandled exception task_id=%s",
                          payload.get("task_id"))
         await queue.fail(raw, payload)
+        stats.jobs_failed += 1
+        stats.last_job_at = utc_now_iso()
+        stats.busy = False
         return True
     await queue.ack(raw)
+    stats.jobs_done += 1
+    stats.last_job_at = utc_now_iso()
+    stats.busy = False
     return True
 
 
diff --git a/services/insta-render/main.py b/services/insta-render/main.py
index 0d93b76..ee98c11 100644
--- a/services/insta-render/main.py
+++ b/services/insta-render/main.py
@@ -3,12 +3,15 @@ from __future__ import annotations
 
 import asyncio
 import logging
+import os
 from contextlib import asynccontextmanager
 
+import redis.asyncio as aioredis
 from fastapi import FastAPI
 
 import card_renderer
 import worker
+from _shared.heartbeat import heartbeat_loop
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s %(name)s %(levelname)s %(message)s")
 logger = logging.getLogger(__name__)
@@ -20,15 +23,19 @@ async def lifespan(app: FastAPI):
     await card_renderer.init_browser()
     # 큐 워커 백그라운드 시작
     worker_task = asyncio.create_task(worker.worker_loop())
+    hb_redis = aioredis.from_url(os.getenv("REDIS_URL", "redis://192.168.45.54:6379"), decode_responses=False)
+    hb_task = asyncio.create_task(heartbeat_loop(hb_redis, "insta-render", "render", worker.stats))
     logger.info("insta-render lifespan 시작")
     try:
         yield
     finally:
-        worker_task.cancel()
-        try:
-            await worker_task
-        except asyncio.CancelledError:
-            pass
+        for t in (worker_task, hb_task):
+            t.cancel()
+            try:
+                await t
+            except asyncio.CancelledError:
+                pass
+        await hb_redis.aclose()
         await card_renderer.shutdown_browser()
         logger.info("insta-render lifespan 종료")
 
diff --git a/services/insta-render/tests/test_worker.py b/services/insta-render/tests/test_worker.py
index ef47b47..38bd12b 100644
--- a/services/insta-render/tests/test_worker.py
+++ b/services/insta-render/tests/test_worker.py
@@ -230,3 +230,27 @@ def test_make_queue_redis_socket_timeout_exceeds_block():
     c = worker.make_queue_redis()
     st = c.connection_pool.connection_kwargs.get("socket_timeout")
     assert st is not None and st > 5   # blmove 블록(5s)보다 커야 안정
+
+
+# ----- heartbeat stats 카운터 -----
+
+class _OneJobQueueInsta:
+    def __init__(self): self.acked = False
+    async def dequeue(self, timeout=5):
+        if self.acked: return None
+        return ({"task_id": "t1", "params": {"slate_id": 1, "theme": "default"}}, b"raw")
+    async def ack(self, raw): self.acked = True
+    async def fail(self, raw, payload): pass
+
+
+@pytest.mark.asyncio
+async def test_poll_once_increments_jobs_done(monkeypatch):
+    worker.stats.jobs_done = 0
+    async def fake_process(client, payload): pass
+    monkeypatch.setattr(worker, "_process_one", fake_process)
+    async with httpx.AsyncClient() as client:
+        handled = await worker.poll_once(_OneJobQueueInsta(), client)
+    assert handled is True
+    assert worker.stats.jobs_done == 1
+    assert worker.stats.busy is False
+    assert worker.stats.last_job_at is not None
diff --git a/services/insta-render/worker.py b/services/insta-render/worker.py
index 86dd207..e47791d 100644
--- a/services/insta-render/worker.py
+++ b/services/insta-render/worker.py
@@ -14,9 +14,11 @@ import redis.asyncio as aioredis
 
 from card_renderer import render_slate
 from _shared.reliable_queue import ReliableQueue
+from _shared.heartbeat import WorkerStats, utc_now_iso
 
 logger = logging.getLogger(__name__)
 
+stats = WorkerStats()
 
 REDIS_URL = os.getenv("REDIS_URL", "redis://192.168.45.54:6379")
 NAS_BASE_URL = os.getenv("NAS_BASE_URL", "http://192.168.45.54:18700")
@@ -89,12 +91,19 @@ async def poll_once(queue: ReliableQueue, client: httpx.AsyncClient) -> bool:
     if result is None:
         return False
     payload, raw = result
+    stats.busy = True
     try:
         await _process_one(client, payload)
     except Exception:
         await queue.fail(raw, payload)
+        stats.jobs_failed += 1
+        stats.last_job_at = utc_now_iso()
+        stats.busy = False
         return True
     await queue.ack(raw)
+    stats.jobs_done += 1
+    stats.last_job_at = utc_now_iso()
+    stats.busy = False
     return True
 
 
diff --git a/services/music-render/main.py b/services/music-render/main.py
index 743b48a..285300c 100644
--- a/services/music-render/main.py
+++ b/services/music-render/main.py
@@ -7,12 +7,15 @@ from __future__ import annotations
 
 import asyncio
 import logging
+import os
 from contextlib import asynccontextmanager
 
+import redis.asyncio as aioredis
 from fastapi import FastAPI, HTTPException
 from pydantic import BaseModel
 
 import worker
+from _shared.heartbeat import heartbeat_loop
 from providers.sync_ops import (
     generate_lyrics, get_credits,
     get_timestamped_lyrics, generate_style_boost,
@@ -25,15 +28,19 @@ logger = logging.getLogger(__name__)
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     worker_task = asyncio.create_task(worker.worker_loop())
+    hb_redis = aioredis.from_url(os.getenv("REDIS_URL", "redis://192.168.45.54:6379"), decode_responses=False)
+    hb_task = asyncio.create_task(heartbeat_loop(hb_redis, "music-render", "render", worker.stats))
     logger.info("music-render lifespan 시작")
     try:
         yield
     finally:
-        worker_task.cancel()
-        try:
-            await worker_task
-        except asyncio.CancelledError:
-            pass
+        for t in (worker_task, hb_task):
+            t.cancel()
+            try:
+                await t
+            except asyncio.CancelledError:
+                pass
+        await hb_redis.aclose()
         logger.info("music-render lifespan 종료")
 
 
diff --git a/services/music-render/tests/test_worker.py b/services/music-render/tests/test_worker.py
index 8c8193b..5510725 100644
--- a/services/music-render/tests/test_worker.py
+++ b/services/music-render/tests/test_worker.py
@@ -167,3 +167,25 @@ async def test_poll_once_returns_false_on_timeout(monkeypatch):
     dispatch_mock.assert_not_called()
     fake_queue.ack.assert_not_awaited()
     fake_queue.fail.assert_not_awaited()
+
+
+# ----- heartbeat stats 카운터 -----
+
+class _OneJobQueue:
+    def __init__(self): self.acked = False
+    async def dequeue(self, timeout=5):
+        if self.acked: return None
+        return ({"job_type": "suno_generation", "task_id": "t1", "params": {}}, b"raw")
+    async def ack(self, raw): self.acked = True
+    async def fail(self, raw, payload): pass
+
+
+@pytest.mark.asyncio
+async def test_poll_once_increments_jobs_done(monkeypatch):
+    worker.stats.jobs_done = 0
+    monkeypatch.setattr(worker, "run_suno_generation", lambda task_id, params: None)
+    handled = await worker.poll_once(_OneJobQueue())
+    assert handled is True
+    assert worker.stats.jobs_done == 1
+    assert worker.stats.busy is False
+    assert worker.stats.last_job_at is not None
diff --git a/services/music-render/worker.py b/services/music-render/worker.py
index b57807f..ff512c8 100644
--- a/services/music-render/worker.py
+++ b/services/music-render/worker.py
@@ -21,6 +21,7 @@ from providers.suno import (
 )
 from providers.local import run_local_generation
 from _shared.reliable_queue import ReliableQueue
+from _shared.heartbeat import WorkerStats, utc_now_iso
 
 logger = logging.getLogger(__name__)
 
@@ -28,6 +29,8 @@ REDIS_URL = os.getenv("REDIS_URL", "redis://192.168.45.54:6379")
 QUEUE_KEY = "queue:music-render"
 PAUSED_KEY = "queue:paused"
 
+stats = WorkerStats()
+
 # Maps job_type → module-level function name (string).
 # _dispatch resolves the name via globals() at call time so unittest.mock.patch
 # on "worker.<name>" is correctly intercepted.
@@ -74,6 +77,7 @@ async def poll_once(queue: ReliableQueue) -> bool:
     if result is None:
         return False
     payload, raw = result
+    stats.busy = True
     try:
         # sync provider 함수 — thread로 실행해서 이벤트 루프 블로킹 방지
         await asyncio.to_thread(_dispatch, payload)
@@ -81,8 +85,14 @@ async def poll_once(queue: ReliableQueue) -> bool:
         logger.exception("dispatch unhandled exception task_id=%s",
                          payload.get("task_id"))
         await queue.fail(raw, payload)
+        stats.jobs_failed += 1
+        stats.last_job_at = utc_now_iso()
+        stats.busy = False
         return True
     await queue.ack(raw)
+    stats.jobs_done += 1
+    stats.last_job_at = utc_now_iso()
+    stats.busy = False
     return True
 
 
diff --git a/services/video-render/main.py b/services/video-render/main.py
index 4641de3..337d5d4 100644
--- a/services/video-render/main.py
+++ b/services/video-render/main.py
@@ -3,11 +3,14 @@ from __future__ import annotations
 
 import asyncio
 import logging
+import os
 from contextlib import asynccontextmanager
 
+import redis.asyncio as aioredis
 from fastapi import FastAPI
 
 import worker
+from _shared.heartbeat import heartbeat_loop
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s %(name)s %(levelname)s %(message)s")
 logger = logging.getLogger(__name__)
@@ -16,15 +19,19 @@ logger = logging.getLogger(__name__)
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     worker_task = asyncio.create_task(worker.worker_loop())
+    hb_redis = aioredis.from_url(os.getenv("REDIS_URL", "redis://192.168.45.54:6379"), decode_responses=False)
+    hb_task = asyncio.create_task(heartbeat_loop(hb_redis, "video-render", "render", worker.stats))
     logger.info("video-render lifespan 시작")
     try:
         yield
     finally:
-        worker_task.cancel()
-        try:
-            await worker_task
-        except asyncio.CancelledError:
-            pass
+        for t in (worker_task, hb_task):
+            t.cancel()
+            try:
+                await t
+            except asyncio.CancelledError:
+                pass
+        await hb_redis.aclose()
         logger.info("video-render lifespan 종료")
 
 
diff --git a/services/video-render/tests/test_worker.py b/services/video-render/tests/test_worker.py
index 5c69934..c052673 100644
--- a/services/video-render/tests/test_worker.py
+++ b/services/video-render/tests/test_worker.py
@@ -94,3 +94,25 @@ async def test_poll_once_returns_false_on_timeout(monkeypatch):
     assert handled is False
     fake_queue.ack.assert_not_awaited()
     fake_queue.fail.assert_not_awaited()
+
+
+# ----- heartbeat stats 카운터 -----
+
+class _OneJobQueue:
+    def __init__(self): self.acked = False
+    async def dequeue(self, timeout=5):
+        if self.acked: return None
+        return ({"job_type": "sora_generation", "task_id": "t1", "params": {}}, b"raw")
+    async def ack(self, raw): self.acked = True
+    async def fail(self, raw, payload): pass
+
+
+@pytest.mark.asyncio
+async def test_poll_once_increments_jobs_done(monkeypatch):
+    worker.stats.jobs_done = 0
+    monkeypatch.setattr(worker, "run_sora_generation", lambda task_id, params: None)
+    handled = await worker.poll_once(_OneJobQueue())
+    assert handled is True
+    assert worker.stats.jobs_done == 1
+    assert worker.stats.busy is False
+    assert worker.stats.last_job_at is not None
diff --git a/services/video-render/worker.py b/services/video-render/worker.py
index cb2683f..bbe238c 100644
--- a/services/video-render/worker.py
+++ b/services/video-render/worker.py
@@ -19,6 +19,7 @@ from providers.veo import run_veo_generation
 from providers.kling import run_kling_generation
 from providers.seedance import run_seedance_generation
 from _shared.reliable_queue import ReliableQueue
+from _shared.heartbeat import WorkerStats, utc_now_iso
 
 logger = logging.getLogger(__name__)
 
@@ -26,6 +27,8 @@ REDIS_URL = os.getenv("REDIS_URL", "redis://192.168.45.54:6379")
 QUEUE_KEY = "queue:video-render"
 PAUSED_KEY = "queue:paused"
 
+stats = WorkerStats()
+
 # string names so `unittest.mock.patch` on `worker.<name>` is correctly intercepted
 _DISPATCH_TABLE = {
     "sora_generation":     "run_sora_generation",
@@ -60,14 +63,21 @@ async def poll_once(queue: ReliableQueue) -> bool:
     if result is None:
         return False
     payload, raw = result
+    stats.busy = True
     try:
         await asyncio.to_thread(_dispatch, payload)
     except Exception:
         logger.exception("dispatch unhandled exception task_id=%s",
                          payload.get("task_id"))
         await queue.fail(raw, payload)
+        stats.jobs_failed += 1
+        stats.last_job_at = utc_now_iso()
+        stats.busy = False
         return True
     await queue.ack(raw)
+    stats.jobs_done += 1
+    stats.last_job_at = utc_now_iso()
+    stats.busy = False
     return True