diff --git a/bioflow_service/app/services/bioflow/runner.py b/bioflow_service/app/services/bioflow/runner.py
index 4553a11..1de5e30 100644
--- a/bioflow_service/app/services/bioflow/runner.py
+++ b/bioflow_service/app/services/bioflow/runner.py
@@ -617,6 +617,30 @@ def parse_progress_marker(line: str) -> dict[str, Any] | None:
     return None
 
 
+_METRIC_LABELS = {
+    "hits": "命中", "hit_count": "命中", "mapping_rate": "比对率",
+    "aligned": "比对", "mapped": "比对", "identified": "鉴定",
+    "members": "成员", "de_genes": "差异基因", "up": "上调", "down": "下调",
+    "enriched": "富集", "count": "数量", "total": "总数",
+    "records": "记录", "sequences": "序列",
+}
+
+
+def _metrics_summary(stage: str, metrics: dict) -> str:
+    """阶段完成摘要（G 关键指标自然语言转述）；无指标时退化为「阶段已完成」。"""
+    if not isinstance(metrics, dict) or not metrics:
+        return f"阶段 {stage} 已完成"
+    parts = []
+    for k, v in metrics.items():
+        if not isinstance(v, (int, float, str, bool)):
+            continue
+        label = _METRIC_LABELS.get(str(k), str(k))
+        parts.append(f"{label} {v}")
+    if parts:
+        return f"阶段 {stage} 完成：{'，'.join(parts)}"
+    return f"阶段 {stage} 已完成"
+
+
 @dataclass
 class JobRecord:
     """任务内存记录（DB 行 + 派生路径）。"""
@@ -1071,7 +1095,7 @@ class Runner:
             "job_id": record.id, "stage": stage, "exit_code": exit_code,
             "manifest_ref": manifest.path,
             "metrics": manifest.metrics,
-            "summary": f"阶段 {stage} 已完成",
+            "summary": _metrics_summary(stage, manifest.metrics),
         })
         return "done"