diff --git a/app/admin/repositories/stats.py b/app/admin/repositories/stats.py
index e82f5b6..26e13df 100644
--- a/app/admin/repositories/stats.py
+++ b/app/admin/repositories/stats.py
@@ -30,18 +30,17 @@ from app.models.user import User
 from app.models.wallet import CoinTransaction, WithdrawOrder
 
 _BEIJING = timezone(timedelta(hours=8))
-REWARD_VIDEO_BIZ_TYPES = ("reward_video", "ad_reward")
+REWARD_VIDEO_BIZ_TYPES = ("reward_video", "ad_reward", "signin_boost")
 # 领券/比价奖励金币的真实来源是信息流广告发奖(ad_feed_reward_record,按 feed_scene 分场景);
 # coin_transaction 里只有扁平的 feed_ad_reward、biz_type 不分 coupon/comparison,故这俩桶历史从未
-# 被写入,仅留作未来兜底,实际金额在下方按 feed_scene 汇总 ad_feed_reward_record 得出。reward_video/
-# ad_reward 是激励视频,单独成桶、不再混进领券奖励(历史误并会把激励视频金币双计进领券)。
+# 被写入,仅留作未来兜底,实际金额在下方按 feed_scene 汇总 ad_feed_reward_record 得出。
+# reward_video/ad_reward 及历史 signin_boost 均归看视频桶，不再混进领券奖励或常规任务。
 COUPON_REWARD_BIZ_TYPES = ("coupon", "coupon_reward")
 COMPARISON_REWARD_BIZ_TYPES = ("comparison", "compare_reward", "comparison_reward")
 # 常规任务必须按明确来源相加；不能从全部正向流水反减排除项，否则新增广告/运营
 # biz_type 时会在排除清单更新前自动混入该桶。task_ 前缀在查询处单独覆盖现有及未来任务。
 REGULAR_TASK_EXACT_BIZ_TYPES = (
     "signin",
-    "signin_boost",
     "price_report_reward",
     "feedback_reward",
 )
diff --git a/tests/test_admin_read.py b/tests/test_admin_read.py
index d2b6526..a01ca96 100644
--- a/tests/test_admin_read.py
+++ b/tests/test_admin_read.py
@@ -468,13 +468,13 @@ def test_period_regular_task_coin_uses_explicit_allowlist(
     d = "2021-06-18"
     included = {
         "signin": 100,
-        "signin_boost": 200,
         "task_enable_notification": 300,
         "task_other": 400,
         "price_report_reward": 500,
         "feedback_reward": 600,
     }
     excluded = {
+        "signin_boost": 200,
         "feed_ad_reward_coupon": 700,
         "feed_ad_reward_comparison": 800,
         "feed_ad_reward": 900,
@@ -514,3 +514,51 @@ def test_period_regular_task_coin_uses_explicit_allowlist(
     coins = response.json()["period"]["coins"]
     assert coins["regular_task_coin_total"] == sum(included.values())
     assert coins["task_coin_total"] == 700
+    assert coins["reward_video_coin_total"] == 1200
+
+
+def test_period_signin_boost_moves_to_reward_video_without_double_count(
+    admin_client: TestClient, admin_token: str
+) -> None:
+    """历史签到膨胀归看视频桶，不再进常规任务；本期发放总额不变且不重复计算。"""
+    from datetime import datetime
+
+    from app.models.wallet import CoinTransaction
+
+    d = "2021-06-19"
+    rows = [
+        ("signin_boost", 200),
+        ("reward_video", 100),
+        ("signin", 50),
+    ]
+    db = SessionLocal()
+    try:
+        uid = user_repo.upsert_user_for_login(
+            db, phone="13800008805", register_channel="sms"
+        ).id
+        balance = 0
+        for index, (biz_type, amount) in enumerate(rows, start=1):
+            balance += amount
+            db.add(CoinTransaction(
+                user_id=uid,
+                amount=amount,
+                balance_after=balance,
+                biz_type=biz_type,
+                ref_id=f"signin-boost-route-{index}",
+                created_at=datetime(2021, 6, 19, 12, 0, index),
+            ))
+        db.commit()
+    finally:
+        db.close()
+
+    response = admin_client.get(
+        "/admin/api/stats/overview",
+        params={"date_from": d, "date_to": d},
+        headers=_auth(admin_token),
+    )
+    assert response.status_code == 200, response.text
+    coins = response.json()["period"]["coins"]
+    assert coins["granted_total"] == 350
+    assert coins["reward_video_coin_total"] == 300
+    assert coins["regular_task_coin_total"] == 50
+    assert coins["signin_boost_coin_total"] == 200