diff --git a/sanguo_api/routes_pipeline.py b/sanguo_api/routes_pipeline.py
index 50594446..3d58b01f 100644
--- a/sanguo_api/routes_pipeline.py
+++ b/sanguo_api/routes_pipeline.py
@@ -451,6 +451,7 @@ def factors() -> dict:
                       # D7 件②:origin 身份戳+来源卡回链血统(manual=缺省)
                       "origin": e.get("origin") or "manual",
                       "hypothesis": e.get("hypothesis"),
+                      "description": e.get("description") or "",
                       "icRecentT": t,   # 最近批(12M 滚动窗)即近窗 t
                       "icFullT": None,  # eval_store 每批单窗 t,无全史批数据源,如实 null
                       "promotedAtT": e.get("promotion_t") or None,
@@ -587,6 +588,7 @@ def factor_detail(name: str) -> dict:
     return {"factor": {
         "name": name, "status": e["status"],
         "origin": e.get("origin") or "manual", "hypothesis": hyp_id,
+        "description": e.get("description") or "",
         "expression": params.get("expression"),
         "source": params.get("source"),
         "justification": params.get("justification"),
@@ -1137,7 +1139,8 @@ async def _decompose_worker(hyp_id: str, config, job_id: str | None = None) -> d
             for cand in result["passed"]:
                 src = derive_source(cand["expression"])   # 已过门,必为 str
                 vr.upsert_factor(reg, cand["name"], hypothesis=hyp_id,
-                                 status="incubating", origin="decomposer")
+                                 status="incubating", origin="decomposer",
+                                 description=cand.get("description"))
                 vr.add_version(reg, cand["name"], commit="decompose",
                                params={"expression": cand["expression"],
                                        "source": src, "origin": "decomposer",
@@ -1145,6 +1148,7 @@ async def _decompose_worker(hyp_id: str, config, job_id: str | None = None) -> d
                                effective_from=today)
                 registered.append({"name": cand["name"], "source": src,
                                    "expression": cand["expression"],
+                                   "description": cand.get("description", ""),
                                    "justification": cand["justification"]})
             vr.save_registry(rt, reg)
             if card["state"] != "building":   # building 态二次分解=纯增量注册(D3 矩阵无自迁移边)
diff --git a/tests/api/test_routes_pipeline_factors.py b/tests/api/test_routes_pipeline_factors.py
index 670142a4..32061b23 100644
--- a/tests/api/test_routes_pipeline_factors.py
+++ b/tests/api/test_routes_pipeline_factors.py
@@ -59,3 +59,21 @@ def test_revise_verdict_does_not_write_back(client, tmp_path):
     card = next(c for c in pipeline_store.list_hypotheses(
         str(tmp_path / "pipeline.db")) if c["id"] == hyp)
     assert card["state"] != "graveyard" and not card.get("deathReason")
+
+
+def test_factors_and_detail_carry_description(client, tmp_path):
+    """2026-10-09 补丁:description 条目带出,factors 列表与出生档案都可见."""
+    import yaml
+    name, hyp = _seed_factor_card(client)          # 建卡+写 registry(assessable)
+    reg_path = os.environ["SANGUO_FACTOR_REGISTRY"]
+    with open(reg_path, encoding="utf-8") as f:
+        reg = yaml.safe_load(f)
+    reg["factors"][name]["description"] = "毛利变动因子自述"
+    with open(reg_path, "w", encoding="utf-8") as f:
+        yaml.safe_dump(reg, f, allow_unicode=True)
+    items = client.get("/api/v1/pipeline/factors").json()["items"]
+    assert next(i for i in items if i["id"] == name)["description"] == "毛利变动因子自述"
+    d = client.get(f"/api/v1/pipeline/factors/{name}/detail").json()
+    assert d["factor"]["description"] == "毛利变动因子自述"
+    # 存量无 description=空串非 null(前端免判空)
+    assert all(isinstance(i.get("description", ""), str) for i in items)
diff --git a/tests/api/test_routes_pipeline_hypotheses.py b/tests/api/test_routes_pipeline_hypotheses.py
index 2cd6c079..8a523d6b 100644
--- a/tests/api/test_routes_pipeline_hypotheses.py
+++ b/tests/api/test_routes_pipeline_hypotheses.py
@@ -155,6 +155,7 @@ class TestAuth:
 
 DECOMP_GOOD = {"factors": [
     {"name": "llm_mom20", "expression": "cs_rank(ts_mean(close, 20))",
+     "description": "20 日收盘均价动量,量度股价短期延续性",
      "justification": "20 日动量承载假设"}]}
 
 
@@ -218,7 +219,7 @@ class TestDecompose:
         _, queue = fake_llm
         queue.append({"factors": [
             {"name": "llm_bad", "expression": "cs_rank(pledge_pct)",
-             "justification": "j"}]})
+             "description": "质押比例因子", "justification": "j"}]})
         queue.append(DECOMP_GOOD)
         hyp = _seed_card(client)
         job = _wait_job(client, hyp)
@@ -267,10 +268,12 @@ class TestDecompose:
         assert next(i for i in items if i["id"] == hyp)["state"] == "building"
         queue.append({"factors": [
             {"name": "llm_vol5", "expression": "cs_rank(ts_std(close, 5))",
+             "description": "5 日波动率因子自述",
              "justification": "5 日波动承载假设"}]})
         job2 = _wait_job(client, hyp)
         assert job2["status"] == "completed"
         assert job2["registered"][0]["name"] == "llm_vol5"
+        assert job2["registered"][0]["description"] == "5 日波动率因子自述"
         items = client.get("/api/v1/pipeline/hypotheses").json()["items"]
         assert next(i for i in items if i["id"] == hyp)["state"] == "building"
         factors = _yaml.safe_load(reg.read_text())["factors"]