diff --git a/.gitea/workflows/auto-merge.yml b/.gitea/workflows/auto-merge.yml
new file mode 100644
index 000000000..bc0db30ee
--- /dev/null
+++ b/.gitea/workflows/auto-merge.yml
@@ -0,0 +1,145 @@
+name: Auto Merge CI PRs
+
+on:
+  pull_request:
+    types: [synchronize, opened, ready_for_review, review_requested]
+
+jobs:
+  auto-merge:
+    name: Auto Merge on CI Green + Approved
+    runs-on: ci-l1
+    if: github.event_name == 'pull_request' && !github.event.pull_request.draft && github.event.pull_request.base.ref == 'develop'
+    timeout-minutes: 30
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Auto merge when CI passes and approved
+        shell: bash
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          MERGE_TOKEN: ${{ secrets.REVIEW_GITEA_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          BASE_REF: ${{ github.event.pull_request.base.ref }}
+        run: |
+          set -eu
+
+          echo "PR #${PR_NUMBER} - 检查CI状态+审批并自动合并到${BASE_REF}"
+          echo
+
+          # 只合develop分支
+          if [ "$BASE_REF" != "develop" ]; then
+            echo "Skip: 目标分支不是develop"
+            exit 0
+          fi
+
+          # 判断是否纯前端改动
+          FILES=$(curl -s -H "Authorization: token ${GITHUB_TOKEN}" \
+            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}/files?limit=300" \
+            | python3 -c "import sys,json; [print(f['filename']) for f in json.load(sys.stdin)]")
+          TOTAL=$(echo "$FILES" | grep -cv '^$' || true)
+          FRONTEND_COUNT=$(echo "$FILES" | grep -c '^apps/web/' || true)
+          BACKEND_COUNT=$((TOTAL - FRONTEND_COUNT))
+          echo "变更文件: ${TOTAL} 个 (前端: ${FRONTEND_COUNT}, 后端/公共: ${BACKEND_COUNT})"
+
+          if [ "$BACKEND_COUNT" = "0" ] && [ "$FRONTEND_COUNT" -gt "0" ]; then
+            CONTEXTS=("CI/CD Pipeline / Frontend Lint (pull_request)")
+            echo "纯前端改动，只检查Frontend Lint"
+          else
+            CONTEXTS=(
+              "CI/CD Pipeline / Validate Code Quality And Tests (pull_request)"
+              "CI/CD Pipeline / Unit Tests (pull_request)"
+              "CI/CD Pipeline / Frontend Lint (pull_request)"
+              "CI/CD Pipeline / Integration Tests (pull_request)"
+            )
+            echo "检查全部四门禁"
+          fi
+          echo
+
+          # 轮询等待，最多30分钟（180次x10秒）
+          for attempt in $(seq 1 180); do
+            ALL_SUCCESS=true
+            ANY_FAILED=false
+
+            echo "--- 第${attempt}次检查 ($(date '+%H:%M:%S')) ---"
+
+            # 检查CI状态
+            for ctx in "${CONTEXTS[@]}"; do
+              STATE=$(python3 scripts/check_ci_status.py "$GITHUB_TOKEN" "$GITHUB_REPOSITORY" "$GITHUB_SHA" "$ctx")
+              echo "  CI: ${ctx##*/}: $STATE"
+              if [ "$STATE" != "success" ]; then
+                ALL_SUCCESS=false
+              fi
+              if [ "$STATE" = "failure" ] || [ "$STATE" = "error" ]; then
+                ANY_FAILED=true
+              fi
+            done
+
+            # 检查审批状态
+            APPROVAL_RESULT=$(python3 scripts/check_pr_approval.py "$MERGE_TOKEN" "$GITHUB_REPOSITORY" "$PR_NUMBER" 1)
+            echo "  审批: $APPROVAL_RESULT"
+            HAS_APPROVAL=false
+            if echo "$APPROVAL_RESULT" | grep -q '^approved'; then
+              HAS_APPROVAL=true
+            fi
+
+            # 全部满足 → 合并
+            if [ "$ALL_SUCCESS" = "true" ] && [ "$HAS_APPROVAL" = "true" ]; then
+              echo
+              echo "CI全绿 + 审批通过，执行自动合并"
+
+              # 幂等检查：PR是否还是open
+              PR_STATE=$(curl -s -H "Authorization: token ${MERGE_TOKEN}" \
+                "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}" \
+                | python3 -c "import sys,json; print(json.load(sys.stdin).get('state',''))")
+
+              if [ "$PR_STATE" != "open" ]; then
+                echo "PR状态为 ${PR_STATE}，无需合并"
+                exit 0
+              fi
+
+              # 执行squash merge
+              HTTP_CODE=$(curl -s -o /tmp/merge_resp.json -w "%{http_code}" \
+                -X POST \
+                -H "Authorization: token ${MERGE_TOKEN}" \
+                -H "Content-Type: application/json" \
+                -d '{"do":"squash","merge_title_field":"","merge_message_field":"","delete_branch_after_merge":true,"force_merge":false}' \
+                "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}/merge")
+
+              echo "合并API HTTP状态: $HTTP_CODE"
+
+              if [ "$HTTP_CODE" = "200" ]; then
+                echo "自动合并成功"
+                exit 0
+              elif [ "$HTTP_CODE" = "405" ]; then
+                echo "合并失败（405），可能有冲突或门禁未通过"
+                curl -s -X POST \
+                  -H "Authorization: token ${MERGE_TOKEN}" \
+                  -H "Content-Type: application/json" \
+                  -d '{"body": "Auto merge failed: PR may have conflicts or unresolved checks. Please review manually."}' \
+                  "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/issues/${PR_NUMBER}/comments" > /dev/null 2>&1 || true
+                exit 0
+              else
+                echo "自动合并失败 (HTTP $HTTP_CODE)"
+                cat /tmp/merge_resp.json 2>/dev/null || true
+                curl -s -X POST \
+                  -H "Authorization: token ${MERGE_TOKEN}" \
+                  -H "Content-Type: application/json" \
+                  -d "{\"body\": \"Auto merge failed (HTTP ${HTTP_CODE}), please check manually.\"}" \
+                  "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/issues/${PR_NUMBER}/comments" > /dev/null 2>&1 || true
+                exit 1
+              fi
+            fi
+
+            if [ "$ANY_FAILED" = "true" ]; then
+              echo
+              echo "CI有失败项，不自动合并"
+              exit 0
+            fi
+
+            sleep 10
+          done
+
+          echo
+          echo "等待超时（30分钟）"
+          exit 0
diff --git a/scripts/check_pr_approval.py b/scripts/check_pr_approval.py
new file mode 100644
index 000000000..5f08a4c72
--- /dev/null
+++ b/scripts/check_pr_approval.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+"""检查PR是否有至少N个APPROVED审批。
+
+用法: python3 check_pr_approval.py <token> <repo> <pr_number> <min_approval>
+返回: 打印 "approved" 或 "pending"
+"""
+
+import json
+import sys
+import urllib.request
+
+
+def main():
+    if len(sys.argv) != 5:
+        print("pending")
+        return
+
+    token = sys.argv[1]
+    repo = sys.argv[2]
+    pr_number = sys.argv[3]
+    min_approval = int(sys.argv[4])
+
+    api_url = f"https://git.xiaoxiajianji.com/api/v1/repos/{repo}/pulls/{pr_number}/reviews"
+    req = urllib.request.Request(api_url, headers={"Authorization": f"token {token}"})
+
+    try:
+        with urllib.request.urlopen(req, timeout=30) as resp:
+            reviews = json.loads(resp.read().decode())
+    except Exception:
+        print("pending")
+        return
+
+    # 统计APPROVED的人数（去重，同一人多次审批只算一次）
+    approvers = set()
+    for r in reviews:
+        if r.get("state") == "APPROVED":
+            approvers.add(r.get("user", {}).get("login", ""))
+
+    if len(approvers) >= min_approval:
+        print(f"approved ({len(approvers)})")
+    else:
+        print(f"pending ({len(approvers)})")
+
+
+if __name__ == "__main__":
+    main()