diff --git a/scripts/reset-data.sh b/scripts/reset-data.sh
new file mode 100644
index 0000000..a3870c0
--- /dev/null
+++ b/scripts/reset-data.sh
@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+# reset-data.sh — 清空 moziplus v2 运行数据（保留配置）
+set -euo pipefail
+
+TARGET_DIR="$HOME/.sanguo_projects/sanguo_moziplus_v2"
+PM2_NAME="sanguo-moziplus-v2"
+CONFIRM=false
+PROJECT_FILTER=""
+
+usage() {
+  echo "Usage: $0 [options]"
+  echo ""
+  echo "Options:"
+  echo "  --target=DIR       安装目标目录"
+  echo "  --project=NAME     只清指定项目数据（可多次使用，逗号分隔）"
+  echo "  --confirm          确认执行（必须传）"
+  echo "  -h, --help         显示帮助"
+  echo ""
+  echo "Examples:"
+  echo "  $0 --confirm                       # 清空所有数据"
+  echo "  $0 --project=demo --confirm        # 只清 demo 项目"
+  echo "  $0 --project=demo,test --confirm   # 清 demo 和 test 项目"
+  exit 0
+}
+
+for arg in "$@"; do
+  case "$arg" in
+    --target=*) TARGET_DIR="${arg#*=}" ;;
+    --project=*) PROJECT_FILTER="${arg#*=}" ;;
+    --confirm) CONFIRM=true ;;
+    -h|--help) usage ;;
+  esac
+done
+
+if [ "$CONFIRM" = false ]; then
+  echo "⚠️  This will delete running data! Use --confirm to proceed."
+  echo ""
+  if [ -n "$PROJECT_FILTER" ]; then
+    echo "   Would delete data for project(s): $PROJECT_FILTER"
+  else
+    echo "   Would delete ALL project data (keeping config/)"
+  fi
+  exit 1
+fi
+
+DATA_DIR="$TARGET_DIR/data"
+
+if [ ! -d "$DATA_DIR" ]; then
+  echo "❌ Data directory not found: $DATA_DIR" && exit 1
+fi
+
+# ── 停服务 ──
+echo "🛑 Stopping $PM2_NAME..."
+pm2 stop "$PM2_NAME" 2>/dev/null || true
+
+# ── 清数据 ──
+echo ""
+if [ -n "$PROJECT_FILTER" ]; then
+  # 指定项目
+  IFS=',' read -ra PROJECTS <<< "$PROJECT_FILTER"
+  for proj in "${PROJECTS[@]}"; do
+    proj=$(echo "$proj" | xargs)  # trim
+    PROJ_DIR="$DATA_DIR/$proj"
+    if [ -d "$PROJ_DIR" ]; then
+      echo "🗑️  Deleting $proj data..."
+      rm -rf "$PROJ_DIR"
+    else
+      echo "⚠️  Project dir not found: $PROJ_DIR (skipped)"
+    fi
+  done
+else
+  # 清空所有项目数据
+  echo "🗑️  Deleting all project data..."
+  find "$DATA_DIR" -mindepth 1 -maxdepth 1 -type d ! -name '_registry*' -exec rm -rf {} +
+  # 清 registry.db（会自动重建）
+  rm -f "$DATA_DIR/registry.db" "$DATA_DIR/registry.db-shm" "$DATA_DIR/registry.db-wal"
+fi
+
+# ── 清 inbox 和 logs ──
+echo "🗑️  Cleaning inbox and logs..."
+rm -f "$TARGET_DIR/inbox/"*.jsonl 2>/dev/null || true
+rm -f "$TARGET_DIR/logs/"* 2>/dev/null || true
+
+# ── 重启服务 ──
+echo ""
+echo "▶️  Starting $PM2_NAME..."
+pm2 start "$PM2_NAME"
+
+# ── 完成 ──
+echo ""
+if [ -n "$PROJECT_FILTER" ]; then
+  echo "✅ Project data reset: $PROJECT_FILTER"
+else
+  echo "✅ All data reset (config preserved)"
+fi
+echo "   URL: http://localhost:8083/"