diff --git a/backend/app/api/approvals.py b/backend/app/api/approvals.py
index e904e8fe..0a25cd28 100644
--- a/backend/app/api/approvals.py
+++ b/backend/app/api/approvals.py
@@ -20,12 +20,16 @@ from app.api.deps import (
     get_board_for_user_write,
     require_admin_or_agent,
 )
+from app.core.logging import get_logger
 from app.core.time import utcnow
 from app.db.pagination import paginate
 from app.db.session import async_session_maker, get_session
+from app.models.agents import Agent
 from app.models.approvals import Approval
 from app.schemas.approvals import ApprovalCreate, ApprovalRead, ApprovalStatus, ApprovalUpdate
 from app.schemas.pagination import DefaultLimitOffsetPage
+from app.services.activity_log import record_activity
+from app.services.openclaw.gateway_dispatch import GatewayDispatchService
 
 if TYPE_CHECKING:
     from collections.abc import AsyncIterator
@@ -36,6 +40,7 @@ if TYPE_CHECKING:
     from app.models.boards import Board
 
 router = APIRouter(prefix="/boards/{board_id}/approvals", tags=["approvals"])
+logger = get_logger(__name__)
 
 TASK_ID_KEYS: tuple[str, ...] = ("task_id", "taskId", "taskID")
 STREAM_POLL_SECONDS = 2
@@ -90,6 +95,83 @@ def _serialize_approval(approval: Approval) -> dict[str, object]:
     ).model_dump(mode="json")
 
 
+def _approval_resolution_message(
+    *,
+    board: Board,
+    approval: Approval,
+) -> str:
+    status_text = "approved" if approval.status == "approved" else "rejected"
+    lines = [
+        "APPROVAL RESOLVED",
+        f"Board: {board.name}",
+        f"Approval ID: {approval.id}",
+        f"Action: {approval.action_type}",
+        f"Decision: {status_text}",
+        f"Confidence: {approval.confidence}",
+    ]
+    if approval.task_id is not None:
+        lines.append(f"Task ID: {approval.task_id}")
+    lines.append("")
+    lines.append("Take action: continue execution using the final approval decision.")
+    return "\n".join(lines)
+
+
+async def _resolve_board_lead(
+    session: AsyncSession,
+    *,
+    board_id: UUID,
+) -> Agent | None:
+    return (
+        await Agent.objects.filter_by(board_id=board_id)
+        .filter(col(Agent.is_board_lead).is_(True))
+        .first(session)
+    )
+
+
+async def _notify_lead_on_approval_resolution(
+    *,
+    session: AsyncSession,
+    board: Board,
+    approval: Approval,
+) -> None:
+    if approval.status not in {"approved", "rejected"}:
+        return
+    lead = await _resolve_board_lead(session, board_id=board.id)
+    if lead is None or not lead.openclaw_session_id:
+        return
+
+    dispatch = GatewayDispatchService(session)
+    config = await dispatch.optional_gateway_config_for_board(board)
+    if config is None:
+        return
+
+    message = _approval_resolution_message(board=board, approval=approval)
+    error = await dispatch.try_send_agent_message(
+        session_key=lead.openclaw_session_id,
+        config=config,
+        agent_name=lead.name,
+        message=message,
+        deliver=False,
+    )
+    if error is None:
+        record_activity(
+            session,
+            event_type="approval.lead_notified",
+            message=f"Lead agent notified for {approval.status} approval {approval.id}.",
+            agent_id=lead.id,
+            task_id=approval.task_id,
+        )
+    else:
+        record_activity(
+            session,
+            event_type="approval.lead_notify_failed",
+            message=f"Lead notify failed for approval {approval.id}: {error}",
+            agent_id=lead.id,
+            task_id=approval.task_id,
+        )
+    await session.commit()
+
+
 async def _fetch_approval_events(
     session: AsyncSession,
     board_id: UUID,
@@ -238,6 +320,7 @@ async def update_approval(
     if approval is None or approval.board_id != board.id:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
     updates = payload.model_dump(exclude_unset=True)
+    prior_status = approval.status
     if "status" in updates:
         approval.status = updates["status"]
         if approval.status != "pending":
@@ -245,4 +328,18 @@ async def update_approval(
     session.add(approval)
     await session.commit()
     await session.refresh(approval)
+    if approval.status in {"approved", "rejected"} and approval.status != prior_status:
+        try:
+            await _notify_lead_on_approval_resolution(
+                session=session,
+                board=board,
+                approval=approval,
+            )
+        except Exception:
+            logger.exception(
+                "approval.lead_notify_unexpected board_id=%s approval_id=%s status=%s",
+                board.id,
+                approval.id,
+                approval.status,
+            )
     return approval
diff --git a/backend/tests/test_approvals_lead_notifications.py b/backend/tests/test_approvals_lead_notifications.py
new file mode 100644
index 00000000..e79d399f
--- /dev/null
+++ b/backend/tests/test_approvals_lead_notifications.py
@@ -0,0 +1,175 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any
+from uuid import UUID, uuid4
+
+import pytest
+
+from app.api import approvals
+from app.models.agents import Agent
+from app.models.approvals import Approval
+from app.models.boards import Board
+from app.schemas.approvals import ApprovalUpdate
+from app.services.openclaw.gateway_rpc import GatewayConfig as GatewayClientConfig
+
+
+class _ByIdQuery:
+    def __init__(self, approval: Approval | None) -> None:
+        self._approval = approval
+
+    async def first(self, _session: object) -> Approval | None:
+        return self._approval
+
+
+class _ApprovalObjects:
+    def __init__(self, approval: Approval | None) -> None:
+        self._approval = approval
+
+    def by_id(self, _approval_id: str) -> _ByIdQuery:
+        return _ByIdQuery(self._approval)
+
+
+@dataclass
+class _FakeSession:
+    commits: int = 0
+    refreshed: int = 0
+    added: list[object] = None  # type: ignore[assignment]
+
+    def __post_init__(self) -> None:
+        if self.added is None:
+            self.added = []
+
+    def add(self, value: object) -> None:
+        self.added.append(value)
+
+    async def commit(self) -> None:
+        self.commits += 1
+
+    async def refresh(self, _value: object) -> None:
+        self.refreshed += 1
+
+
+def _board() -> Board:
+    return Board(
+        id=uuid4(),
+        organization_id=uuid4(),
+        name="Ops",
+        slug="ops",
+    )
+
+
+def _approval(*, board_id: UUID, status: str = "pending") -> Approval:
+    return Approval(
+        id=uuid4(),
+        board_id=board_id,
+        action_type="task.execute",
+        confidence=91,
+        status=status,
+        payload={"target": "deployment"},
+    )
+
+
+@pytest.mark.asyncio
+async def test_update_approval_notifies_lead_when_approved(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    board = _board()
+    approval = _approval(board_id=board.id, status="pending")
+    lead = Agent(
+        id=uuid4(),
+        board_id=board.id,
+        gateway_id=uuid4(),
+        name="Lead Agent",
+        is_board_lead=True,
+        openclaw_session_id="agent:lead:session",
+    )
+    session = _FakeSession()
+    captured: dict[str, Any] = {}
+
+    fake_approval_model = type("FakeApprovalModel", (), {"objects": _ApprovalObjects(approval)})
+    monkeypatch.setattr(approvals, "Approval", fake_approval_model)
+
+    async def _fake_resolve_lead(*_args: Any, **_kwargs: Any) -> Agent:
+        return lead
+
+    async def _fake_optional_gateway_config_for_board(
+        self: approvals.GatewayDispatchService,
+        _board: Board,
+    ) -> GatewayClientConfig:
+        _ = self
+        return GatewayClientConfig(url="ws://gateway.example/ws", token=None)
+
+    async def _fake_try_send_agent_message(
+        self: approvals.GatewayDispatchService,
+        **kwargs: Any,
+    ) -> None:
+        _ = self
+        captured.update(kwargs)
+        return None
+
+    monkeypatch.setattr(approvals, "_resolve_board_lead", _fake_resolve_lead)
+    monkeypatch.setattr(
+        approvals.GatewayDispatchService,
+        "optional_gateway_config_for_board",
+        _fake_optional_gateway_config_for_board,
+    )
+    monkeypatch.setattr(
+        approvals.GatewayDispatchService,
+        "try_send_agent_message",
+        _fake_try_send_agent_message,
+    )
+
+    updated = await approvals.update_approval(
+        approval_id=str(approval.id),
+        payload=ApprovalUpdate(status="approved"),
+        board=board,
+        session=session,  # type: ignore[arg-type]
+    )
+
+    assert updated.status == "approved"
+    assert captured["session_key"] == "agent:lead:session"
+    assert captured["agent_name"] == "Lead Agent"
+    assert "APPROVAL RESOLVED" in captured["message"]
+    assert "Decision: approved" in captured["message"]
+
+    event_types = [item.event_type for item in session.added if hasattr(item, "event_type")]
+    assert "approval.lead_notified" in event_types
+    assert session.commits >= 2
+
+
+@pytest.mark.asyncio
+async def test_update_approval_skips_notify_when_status_not_resolved(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    board = _board()
+    approval = _approval(board_id=board.id, status="pending")
+    session = _FakeSession()
+    called = {"notify": 0}
+
+    fake_approval_model = type("FakeApprovalModel", (), {"objects": _ApprovalObjects(approval)})
+    monkeypatch.setattr(approvals, "Approval", fake_approval_model)
+
+    async def _fake_notify(**_kwargs: Any) -> None:
+        called["notify"] += 1
+
+    monkeypatch.setattr(approvals, "_notify_lead_on_approval_resolution", _fake_notify)
+
+    updated = await approvals.update_approval(
+        approval_id=str(approval.id),
+        payload=ApprovalUpdate(status="pending"),
+        board=board,
+        session=session,  # type: ignore[arg-type]
+    )
+
+    assert updated.status == "pending"
+    assert called["notify"] == 0
+
+
+def test_approval_resolution_message_uses_rejected_enum_value() -> None:
+    board = _board()
+    approval = _approval(board_id=board.id, status="rejected")
+    message = approvals._approval_resolution_message(board=board, approval=approval)
+    assert "APPROVAL RESOLVED" in message
+    assert f"Approval ID: {approval.id}" in message
+    assert "Decision: rejected" in message