diff --git a/scripts/kanban_update.py b/scripts/kanban_update.py
index 0566cac..cd6ed22 100644
--- a/scripts/kanban_update.py
+++ b/scripts/kanban_update.py
@@ -24,7 +24,9 @@
 """
 import json, pathlib, datetime, sys, subprocess, logging, os, re
 
-_BASE = pathlib.Path(__file__).resolve().parent.parent
+# 优先使用环境变量 EDICT_HOME，兜底才用脚本相对路径
+# 这样脚本被 sync 到各 workspace 后仍能正确写入中央数据库
+_BASE = pathlib.Path(os.environ['EDICT_HOME']) if 'EDICT_HOME' in os.environ else pathlib.Path(__file__).resolve().parent.parent
 TASKS_FILE = _BASE / 'data' / 'tasks_source.json'
 REFRESH_SCRIPT = _BASE / 'scripts' / 'refresh_live_data.py'
 
diff --git a/scripts/run_loop.sh b/scripts/run_loop.sh
index 53eef5c..53b3c8f 100755
--- a/scripts/run_loop.sh
+++ b/scripts/run_loop.sh
@@ -5,6 +5,8 @@
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# EDICT_HOME 指向中央仓库根目录，供各 workspace 里的 kanban_update.py 定位中央数据库
+export EDICT_HOME="$(dirname "$SCRIPT_DIR")"
 INTERVAL="${1:-15}"
 LOG="/tmp/sansheng_liubu_refresh.log"
 PIDFILE="/tmp/sansheng_liubu_refresh.pid"