diff --git a/routes/admin_observability_routes.py b/routes/admin_observability_routes.py
index b1cfe77..f4b9db6 100644
--- a/routes/admin_observability_routes.py
+++ b/routes/admin_observability_routes.py
@@ -2321,6 +2321,14 @@ def ppt_audit_history():
 def host_health_dashboard():
     """三主機 Ollama + 4 個 MCP server 即時健康（同時寫入 host_health_probes 留歷史）"""
     import time as _time
+
+    def _session_uses_sqlite(session) -> bool:
+        try:
+            bind = session.get_bind()
+            return getattr(getattr(bind, 'dialect', None), 'name', None) == 'sqlite'
+        except Exception:
+            return False
+
     ollama_hosts = []
     probe_records = []  # 收集本次 probe 結果以批次寫 DB
     try:
@@ -2365,19 +2373,22 @@ def host_health_dashboard():
         try:
             _session = get_session()
             try:
-                for rec in probe_records:
-                    _session.execute(
-                        sa_text("""
-                            INSERT INTO host_health_probes
-                                (host_label, host_url, healthy, unhealthy_mark,
-                                 models_count, response_ms, error_msg)
-                            VALUES
-                                (:host_label, :host_url, :healthy, :unhealthy_mark,
-                                 :models_count, :response_ms, :error_msg)
-                        """),
-                        rec,
-                    )
-                _session.commit()
+                if _session_uses_sqlite(_session):
+                    logger.debug("Skipping host health probe persistence on SQLite")
+                else:
+                    for rec in probe_records:
+                        _session.execute(
+                            sa_text("""
+                                INSERT INTO host_health_probes
+                                    (host_label, host_url, healthy, unhealthy_mark,
+                                     models_count, response_ms, error_msg)
+                                VALUES
+                                    (:host_label, :host_url, :healthy, :unhealthy_mark,
+                                     :models_count, :response_ms, :error_msg)
+                            """),
+                            rec,
+                        )
+                    _session.commit()
             finally:
                 _session.close()
         except Exception:
diff --git a/tests/test_admin_observability_routes.py b/tests/test_admin_observability_routes.py
index 2f2d43b..89e53ff 100644
--- a/tests/test_admin_observability_routes.py
+++ b/tests/test_admin_observability_routes.py
@@ -194,6 +194,42 @@ def test_host_health_200(client, monkeypatch):
     assert r.status_code == 200
 
 
+def test_host_health_skips_probe_persistence_on_sqlite(client, monkeypatch):
+    """Local visual QA uses SQLite; GET page should not warn on BIGINT autoincrement drift."""
+    from routes import admin_observability_routes as mod
+    import services.ollama_service as ollama_mod
+    import requests as _r
+
+    class _Dialect:
+        name = 'sqlite'
+
+    class _Bind:
+        dialect = _Dialect()
+
+    session = _fake_session([])
+    session.get_bind.return_value = _Bind()
+    monkeypatch.setattr(mod, 'get_session', lambda: session)
+    monkeypatch.setattr(ollama_mod, '_is_unhealthy', lambda _h: False, raising=False)
+    monkeypatch.setattr(ollama_mod, '_unhealthy_marks', {}, raising=False)
+
+    class FakeResponse:
+        status_code = 200
+
+        def json(self):
+            return {'models': [{'name': 'bge-m3'}]}
+
+    monkeypatch.setattr(_r, 'get', lambda *_a, **_kw: FakeResponse())
+
+    r = client.get('/observability/host_health')
+
+    assert r.status_code == 200
+    insert_calls = [
+        call for call in session.execute.call_args_list
+        if 'INSERT INTO host_health_probes' in str(call.args[0])
+    ]
+    assert insert_calls == []
+
+
 # ──────────────────────────────────────────────────────────────────────────
 # Phase 33 Auth Hardening — 未登入必 302 redirect 到 /login
 # ──────────────────────────────────────────────────────────────────────────