diff --git a/README.md b/README.md
index 8c74d0e..6cd164d 100644
--- a/README.md
+++ b/README.md
@@ -86,3 +86,13 @@ npm run dev
 - [接口规划](docs/api.md)
 - [业务规则](docs/business-rules.md)
 - [分销网管理后台设计方案](docs/分销网管理后台设计方案.md)
+
+### 分销独立测试库
+
+启动 MySQL 后，可将当前开发库复制到独立测试库 `hfb_sys_distribution_test`，源库保持不变：
+
+```bash
+./scripts/clone-distribution-test-db.sh
+```
+
+脚本支持通过 `SOURCE_MYSQL_*` 和 `TEST_MYSQL_*` 环境变量指定源库、目标库连接。测试配置模板见 `backend/.env.distribution-test.example`。
diff --git a/scripts/clone-distribution-test-db.sh b/scripts/clone-distribution-test-db.sh
new file mode 100755
index 0000000..8b946af
--- /dev/null
+++ b/scripts/clone-distribution-test-db.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 将当前 MySQL 数据库复制到独立测试库。源库只读，导入不会修改源库。
+# 可通过环境变量覆盖连接：SOURCE_MYSQL_HOST/PORT/USER/PASSWORD/DATABASE、TEST_MYSQL_*。
+
+source_host="${SOURCE_MYSQL_HOST:-127.0.0.1}"
+source_port="${SOURCE_MYSQL_PORT:-13306}"
+source_user="${SOURCE_MYSQL_USER:-hfb}"
+source_password="${SOURCE_MYSQL_PASSWORD:-secret}"
+source_database="${SOURCE_MYSQL_DATABASE:-hfb_sys}"
+test_host="${TEST_MYSQL_HOST:-127.0.0.1}"
+test_port="${TEST_MYSQL_PORT:-13306}"
+test_user="${TEST_MYSQL_USER:-hfb}"
+test_password="${TEST_MYSQL_PASSWORD:-secret}"
+test_database="${TEST_MYSQL_DATABASE:-hfb_sys_distribution_test}"
+dump_file="${DISTRIBUTION_TEST_DUMP:-${TMPDIR:-/tmp}/hfb-distribution-${source_database}.sql}"
+
+for command in mysqldump mysql; do
+  command -v "${command}" >/dev/null || { printf '缺少命令: %s\n' "${command}" >&2; exit 127; }
+done
+[[ "${test_database}" =~ ^[A-Za-z0-9_]+$ ]] || { printf '测试库名称不合法\n' >&2; exit 2; }
+
+printf '导出源库 %s:%s/%s -> %s\n' "${source_host}" "${source_port}" "${source_database}" "${dump_file}"
+MYSQL_PWD="${source_password}" mysqldump \
+  --host="${source_host}" --port="${source_port}" --user="${source_user}" \
+  --single-transaction --routines --triggers --events --hex-blob \
+  "${source_database}" >"${dump_file}"
+
+printf '重建独立测试库 %s:%s/%s\n' "${test_host}" "${test_port}" "${test_database}"
+MYSQL_PWD="${test_password}" mysql --host="${test_host}" --port="${test_port}" --user="${test_user}" \
+  -e "DROP DATABASE IF EXISTS \`${test_database}\`; CREATE DATABASE \`${test_database}\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
+
+printf '导入测试库并完成校验\n'
+MYSQL_PWD="${test_password}" mysql --host="${test_host}" --port="${test_port}" --user="${test_user}" "${test_database}" <"${dump_file}"
+MYSQL_PWD="${test_password}" mysql --host="${test_host}" --port="${test_port}" --user="${test_user}" "${test_database}" \
+  -N -B -e "SELECT COUNT(*) AS table_count FROM information_schema.tables WHERE table_schema='${test_database}';"
+printf '测试库已就绪: %s\n' "${test_database}"