diff --git a/bin/systemd_deploy.sh b/bin/systemd_deploy.sh
new file mode 100755
index 0000000..9b3bc48
--- /dev/null
+++ b/bin/systemd_deploy.sh
@@ -0,0 +1,185 @@
+#!/bin/bash
+# market_sync systemd 一键部署脚本
+#
+# 用途：把 bin/systemd/*.service 和 *.timer 同步到 /etc/systemd/system/，
+#       解决 work #04 检测到的 5 处 drift。
+#
+# 运行：sudo bash bin/systemd_deploy.sh
+#
+# 设计原则：
+#   - 必须 sudo（写 /etc/systemd/system/ + daemon-reload）
+#   - 幂等：重复运行无副作用
+#   - 显示 plan → 等待确认 → 执行
+#   - 失败立即中止，不留半套状态
+
+set -e
+
+PROJECT_ROOT="/home/gao/Development/quant_home/market_sync"
+REPO_UNITS_DIR="$PROJECT_ROOT/bin/systemd"
+ETC_UNITS_DIR="/etc/systemd/system"
+
+# ── 0. 前置检查 ─────────────────────────────────────────────────────────────
+if [ "$(id -u)" -ne 0 ]; then
+  echo "❌ 必须 sudo 运行：sudo bash $0"
+  exit 1
+fi
+
+if [ ! -d "$REPO_UNITS_DIR" ]; then
+  echo "❌ repo unit 目录不存在: $REPO_UNITS_DIR"
+  exit 1
+fi
+
+# ── 1. 计算 plan ────────────────────────────────────────────────────────────
+declare -a TO_COPY=()        # repo→etc 拷贝
+declare -a TO_REMOVE=()      # etc 中孤儿（repo 已删）
+declare -a TO_RESTART_SVC=() # service 文件变了需要 daemon-reload + restart
+
+# repo 中所有 market-sync* unit
+mapfile -t REPO_UNITS < <(find "$REPO_UNITS_DIR" -maxdepth 1 -type f \( -name "*.service" -o -name "*.timer" \) -printf '%f\n' | sort)
+# /etc 中所有 market-sync* unit
+mapfile -t ETC_UNITS < <(find "$ETC_UNITS_DIR" -maxdepth 1 -type f \( -name "market-sync*.service" -o -name "market-sync*.timer" \) -printf '%f\n' | sort 2>/dev/null || true)
+
+# drift 1: repo 有 /etc 没装
+for u in "${REPO_UNITS[@]}"; do
+  if [ ! -f "$ETC_UNITS_DIR/$u" ]; then
+    TO_COPY+=("$u")
+  fi
+done
+
+# drift 2: 两边都有但内容不一致
+for u in "${REPO_UNITS[@]}"; do
+  if [ -f "$ETC_UNITS_DIR/$u" ]; then
+    if ! diff -q "$REPO_UNITS_DIR/$u" "$ETC_UNITS_DIR/$u" > /dev/null 2>&1; then
+      TO_COPY+=("$u")
+      if [[ "$u" == *.service ]]; then
+        TO_RESTART_SVC+=("${u%.service}")
+      fi
+    fi
+  fi
+done
+
+# drift 3: /etc 有 repo 没维护（孤儿）
+for u in "${ETC_UNITS[@]}"; do
+  found=0
+  for r in "${REPO_UNITS[@]}"; do
+    if [ "$r" = "$u" ]; then found=1; break; fi
+  done
+  if [ $found -eq 0 ]; then
+    TO_REMOVE+=("$u")
+  fi
+done
+
+# ── 2. 显示 plan ────────────────────────────────────────────────────────────
+echo "============================================================"
+echo "market_sync systemd deploy plan"
+echo "============================================================"
+echo
+echo "Repo units:    ${#REPO_UNITS[@]} 个"
+echo "/etc units:    ${#ETC_UNITS[@]} 个"
+echo
+
+if [ ${#TO_COPY[@]} -eq 0 ] && [ ${#TO_REMOVE[@]} -eq 0 ]; then
+  echo "✅ 无 drift 需要修复。无需执行。"
+  exit 0
+fi
+
+if [ ${#TO_COPY[@]} -gt 0 ]; then
+  echo "📋 将要拷贝 ($(echo "${TO_COPY[@]}" | tr ' ' '\n' | wc -l) 个):"
+  for u in "${TO_COPY[@]}"; do
+    echo "    cp bin/systemd/$u  →  /etc/systemd/system/$u"
+  done
+  echo
+fi
+
+if [ ${#TO_RESTART_SVC[@]} -gt 0 ]; then
+  echo "🔄 将要重启 service ($(echo "${TO_RESTART_SVC[@]}" | tr ' ' '\n' | wc -l) 个):"
+  for s in "${TO_RESTART_SVC[@]}"; do
+    echo "    systemctl reset-failed $s.service"
+  done
+  echo
+fi
+
+if [ ${#TO_REMOVE[@]} -gt 0 ]; then
+  echo "🗑️  将要删除 etc 中的孤儿 ($(echo "${TO_REMOVE[@]}" | tr ' ' '\n' | wc -l) 个):"
+  for u in "${TO_REMOVE[@]}"; do
+    echo "    rm /etc/systemd/system/$u"
+  done
+  echo
+fi
+
+# ── 3. 等待确认 ────────────────────────────────────────────────────────────
+read -p "确认执行？[y/N] " -n 1 -r
+echo
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+  echo "已取消。"
+  exit 0
+fi
+
+# ── 4. 执行 ─────────────────────────────────────────────────────────────────
+echo
+echo "=== 执行 ==="
+
+# 4a. cp 漂移的 unit
+for u in "${TO_COPY[@]}"; do
+  cp -v "$REPO_UNITS_DIR/$u" "$ETC_UNITS_DIR/$u"
+done
+
+# 4b. 删孤儿
+for u in "${TO_REMOVE[@]}"; do
+  rm -v "$ETC_UNITS_DIR/$u"
+done
+
+# 4c. reload systemd
+echo
+echo "=== systemctl daemon-reload ==="
+systemctl daemon-reload
+
+# 4d. reset-failed + restart 修改过的 service
+for s in "${TO_RESTART_SVC[@]}"; do
+  if systemctl is-enabled "${s}.service" 2>/dev/null | grep -q enabled; then
+    systemctl reset-failed "${s}.service" || true
+    echo "  reset-failed ${s}.service (没自动 restart — 由 timer 自然触发)"
+  fi
+done
+
+# 4e. 启用新 timer（如果有）
+for u in "${TO_COPY[@]}"; do
+  if [[ "$u" == *.timer ]]; then
+    timer="${u%.timer}"
+    if systemctl list-unit-files "${timer}.timer" 2>/dev/null | grep -q "${timer}.timer"; then
+      if ! systemctl is-enabled "${timer}.timer" 2>/dev/null | grep -q enabled; then
+        systemctl enable "${timer}.timer"
+        echo "  enable ${timer}.timer"
+      fi
+    fi
+  fi
+done
+
+# ── 5. 验证 ────────────────────────────────────────────────────────────────
+echo
+echo "=== 验证 ==="
+echo "Repo units:    ${#REPO_UNITS[@]}"
+echo "/etc units:    $(find "$ETC_UNITS_DIR" -maxdepth 1 -type f -name 'market-sync*.service' -o -name 'market-sync*.timer' | wc -l)"
+
+drift_count=0
+for u in "${REPO_UNITS[@]}"; do
+  if [ -f "$ETC_UNITS_DIR/$u" ]; then
+    if ! diff -q "$REPO_UNITS_DIR/$u" "$ETC_UNITS_DIR/$u" > /dev/null 2>&1; then
+      echo "  ❌ $u 仍有 drift"
+      drift_count=$((drift_count + 1))
+    fi
+  else
+    echo "  ❌ $u 仍未部署"
+    drift_count=$((drift_count + 1))
+  fi
+done
+
+echo
+if [ $drift_count -eq 0 ]; then
+  echo "✅ 所有 unit 已对齐，0 drift"
+  echo
+  echo "下一步：跑 .venv/bin/python bin/daily_sync_check.py --report-only 验证"
+else
+  echo "❌ 还有 $drift_count 处 drift，请检查"
+  exit 1
+fi
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diff --git a/docs/works/2026-07-03-05-systemd-deploy-script.md b/docs/works/2026-07-03-05-systemd-deploy-script.md
new file mode 100644
index 0000000..b27a693
--- /dev/null
+++ b/docs/works/2026-07-03-05-systemd-deploy-script.md
@@ -0,0 +1,76 @@
+# 2026-07-03 — work #05: 一键部署脚本 bin/systemd_deploy.sh
+
+## 触发
+
+Stop hook 反馈（user 重申目标后）：
+> "目标未达成。... 留给你做的运维"步骤未执行... 数据今天还是没同步进 PG"
+
+我之前在 work #04 结尾说"最终目标就达成了"是错的预测，不是现状。timer/service 没真的跑 → 数据没真的进 PG。
+
+## 根因
+
+work #01 #02 #03 #04 全部是**代码层 + 配置层**改动，没有可执行的 deploy 路径。user 每次都要：
+1. 手动 `sudo cp` 每个 unit
+2. 手动 `systemctl daemon-reload`
+3. 手动 `systemctl enable` 新 timer
+4. 手动 `reset-failed`
+
+5 个 unit 的手动部署是出错温床（漏 enable、忘 reload、unit 漂移检测在部署后下次才会再跑）。
+
+## 解决
+
+写 `bin/systemd_deploy.sh` —— 一键脚本：
+
+**特性**：
+- 必须 `sudo` 跑（写 /etc/systemd/system/ + daemon-reload）
+- 幂等：重复运行无副作用
+- **显示 plan → 等用户确认 → 执行**（不盲跑）
+- 计算 drift 同 daily_check 逻辑（find + diff）
+- 拷贝 / 删除孤儿 / daemon-reload / enable 新 timer 全在一个流程
+- 执行完再跑一遍验证，告诉你 drift 数
+
+**使用**：
+```bash
+sudo bash bin/systemd_deploy.sh
+```
+
+输出示例（当前 drift 状态）：
+```
+============================================================
+market_sync systemd deploy plan
+============================================================
+Repo units:    14 个
+/etc units:    10 个
+
+📋 将要拷贝 (5 个):
+    cp bin/systemd/market-sync.service  →  /etc/systemd/system/market-sync.service
+    cp bin/systemd/market-sync-daily-check.service  →  /etc/systemd/system/market-sync-daily-check.service
+    ...
+🔄 将要重启 service (1 个):
+    systemctl reset-failed market-sync.service
+...
+
+确认执行？[y/N] y
+
+=== 执行 ===
+'/home/gao/Development/quant_home/market_sync/bin/systemd/market-sync.service' -> '/etc/systemd/system/market-sync.service'
+...
+=== 验证 ===
+✅ 所有 unit 已对齐，0 drift
+```
+
+## 关联
+
+- work #01: 2026-07-03-01-market-sync-timeout.md（修了但没部署）
+- work #02: 2026-07-03-02-morning-no-trigger.md（同上）
+- work #04: 2026-07-03-04-systemd-drift-detection.md（drift 检测出来后，需要 deploy 工具闭环）
+- [[dual-scheduler-overlap]]
+
+## 重要说明
+
+**这个脚本不解决目标本身**——还需要 user 真的去运行 `sudo bash bin/systemd_deploy.sh`。脚本就绪 ≠ 目标达成。
+
+完成后还需：
+1. 跑 daily_check 确认 drift=0
+2. 等明天 15:30 跑一次完整 runall
+3. 跑 1-2 天后 daily_check 报 overall=ok 才算稳定达成
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