diff --git a/TODO_NEXT_STEPS.txt b/TODO_NEXT_STEPS.txt
index 9163bcb..d308848 100644
--- a/TODO_NEXT_STEPS.txt
+++ b/TODO_NEXT_STEPS.txt
@@ -4,6 +4,7 @@
 ================================================================================
 
 【已完成】
+   - V10.210 補 `/observability/ppt_audit_history` 審核歷史同頁回放：每筆 daily 視覺審核紀錄的動作欄新增「回放」按鈕，沿用 PDF 預覽抽屜並保留下載/開新頁，讓問題追查不必再回檔案表找簡報。
    - V10.208 修正 `/observability/ppt_audit_history` 同頁預覽抽屜 selector：Modal 標題改用獨立 `data-ppt-preview-modal-title`，避免與多個預覽連結的資料屬性衝突。
    - V10.207 強化 `/observability/ppt_audit_history` 同頁線上預覽：所有可預覽簡報按鈕改為開啟頁內 PDF 預覽抽屜，保留開新頁與下載，降低產線頁來回跳轉成本並改善手機操作。
    - V10.205 補 `/observability/ppt_audit_history` 本頁批次 PDF 預熱：Preview Workbench 可一鍵預熱頁面上尚未快取的 PPTX，沿用單檔 JSON 端點逐一建立 PDF 快取並即時更新狀態。
diff --git a/config.py b/config.py
index 25047d3..0a748a7 100644
--- a/config.py
+++ b/config.py
@@ -320,7 +320,7 @@ YOUTUBE_API_KEY = os.getenv('YOUTUBE_API_KEY', '')
 # ==========================================
 # 系統版本與路徑
 # ==========================================
-SYSTEM_VERSION = "V10.209"
+SYSTEM_VERSION = "V10.210"
 LOG_FILE_PATH = os.path.join(BASE_DIR, 'logs/system.log')
 public_url = PUBLIC_URL  # 用於模板顯示
 
diff --git a/templates/admin/ppt_audit_history.html b/templates/admin/ppt_audit_history.html
index 7126c02..858d2c8 100644
--- a/templates/admin/ppt_audit_history.html
+++ b/templates/admin/ppt_audit_history.html
@@ -386,6 +386,20 @@
               <td class="text-end">{{ r.duration_ms }}</td>
               <td><small class="text-muted">{{ (r.error_msg or '')[:80] }}</small></td>
               <td>
+                {% if r.pptx_filename %}
+                <a class="btn btn-sm btn-outline-primary"
+                   href="{{ url_for('admin_observability.ppt_audit_file', filename=r.pptx_filename) }}"
+                   target="_blank"
+                   rel="noopener"
+                   data-ppt-open-preview
+                   data-ppt-filename="{{ r.pptx_filename }}"
+                   data-ppt-preview-title="審核回放 · {{ r.pptx_filename }}"
+                   data-ppt-preview-pdf="{{ url_for('admin_observability.ppt_audit_file', filename=r.pptx_filename, action='pdf') }}"
+                   data-ppt-preview-page="{{ url_for('admin_observability.ppt_audit_file', filename=r.pptx_filename) }}"
+                   data-ppt-download-url="{{ url_for('admin_observability.ppt_audit_file', filename=r.pptx_filename, action='download') }}">
+                  <i class="fas fa-eye me-1"></i>回放
+                </a>
+                {% endif %}
                 {% if r.audit_status in ('failed','error') %}
                 <button class="btn btn-sm btn-outline-warning"
                         type="button"
diff --git a/tests/test_admin_observability_routes.py b/tests/test_admin_observability_routes.py
index beac011..97025a6 100644
--- a/tests/test_admin_observability_routes.py
+++ b/tests/test_admin_observability_routes.py
@@ -319,6 +319,60 @@ def test_ppt_audit_file_view_renders_online_preview(client, monkeypatch, tmp_pat
     assert '下載 PPTX' in html
 
 
+def test_ppt_audit_history_audit_rows_include_inline_replay(client, monkeypatch, tmp_path):
+    """審核歷史每筆紀錄都應能直接開同頁 PDF 回放。"""
+    import zipfile
+    from datetime import datetime
+    from unittest.mock import MagicMock
+    from routes import admin_observability_routes as mod
+
+    reports_dir = tmp_path / 'reports'
+    reports_dir.mkdir()
+    pptx = reports_dir / 'ocbot_daily_20260517.pptx'
+    with zipfile.ZipFile(pptx, 'w') as zf:
+        zf.writestr('[Content_Types].xml', '<Types></Types>')
+
+    monkeypatch.setenv('REPORTS_DIR', str(reports_dir))
+
+    class FakeSession:
+        def execute(self, statement, _params=None):
+            sql = str(statement)
+            result = MagicMock()
+            if 'FROM ppt_reports' in sql:
+                rows = []
+                result.fetchall.return_value = rows
+            elif 'SELECT audited_at, pptx_filename' in sql:
+                rows = [
+                    (datetime(2026, 5, 17, 22, 5), 'ocbot_daily_20260517.pptx', 'passed', 0, 0.93, 1200, '')
+                ]
+                result.fetchall.return_value = rows
+            elif 'COALESCE(AVG(confidence)' in sql:
+                row = (1, 1, 0, 0, 0, 0.93, 0)
+                result.fetchone.return_value = row
+            elif 'GROUP BY pptx_filename' in sql:
+                rows = []
+                result.fetchall.return_value = rows
+            else:
+                rows = []
+                result.fetchall.return_value = rows
+                result.fetchone.return_value = (0,)
+            return result
+
+        def close(self):
+            return None
+
+    monkeypatch.setattr(mod, 'get_session', lambda: FakeSession())
+
+    r = client.get('/observability/ppt_audit_history?month=2026-05')
+    html = r.data.decode('utf-8')
+
+    assert r.status_code == 200
+    assert '審核回放 · ocbot_daily_20260517.pptx' in html
+    assert 'data-ppt-open-preview' in html
+    assert 'ocbot_daily_20260517.pptx?action=pdf' in html
+    assert '回放' in html
+
+
 def test_ppt_audit_history_shows_preview_prewarm_action(client, monkeypatch, tmp_path):
     """未快取 PDF 的 PPTX 要能在產線清單直接預熱預覽。"""
     import zipfile