diff --git a/.github/workflows/build_relay.yml b/.github/workflows/build_relay.yml
new file mode 100644
index 000000000..2b43646c9
--- /dev/null
+++ b/.github/workflows/build_relay.yml
@@ -0,0 +1,42 @@
+name: ci_relay
+
+# relay 集成测试：btcd(simnet) + relayd + 6 个 chain33 节点。
+# 依赖 plugin/dapp/relay/cmd/build.sh 在 make build_ci 时构建 relayd 并生成
+# build/ci/relay（relayd、relayd.toml、Dockerfile-relayd、docker-compose-relay.yml、
+# testcase.sh），否则 make docker-compose dapp=relay 会打印
+# "dapp=relay not exist or is system dir" 后直接返回 0（假绿）。
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  ci_relay:
+    name: ci_relay
+    runs-on: ubuntu-22.04
+    timeout-minutes: 90
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+        with:
+          # build 脚本用 git describe --tags 注入版本号
+          fetch-depth: 0
+
+      - name: Set up Golang
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+        id: go
+
+      - name: set go env
+        run: export PATH=${PATH}:`go env GOPATH`/bin
+
+      - name: deploy
+        run: |
+          make build_ci
+          make docker-compose dapp=relay
+
+      - name: cleanup
+        if: always()
+        run: make docker-compose-down dapp=relay
diff --git a/plugin/dapp/relay/cmd/build.sh b/plugin/dapp/relay/cmd/build.sh
index 61ad9259f..996736c88 100755
--- a/plugin/dapp/relay/cmd/build.sh
+++ b/plugin/dapp/relay/cmd/build.sh
@@ -4,14 +4,15 @@ strpwd=$(pwd)
 strcmd=${strpwd##*dapp/}
 strapp=${strcmd%/cmd*}
 
-#OUT_DIR="${1}/$strapp"
-#SRC_RELAYD=github.com/33cn/plugin/plugin/dapp/relay/cmd/relayd
-#FLAG=$2
-#
-## shellcheck disable=SC2086,1072
-#go build ${FLAG} -v -o "${OUT_DIR}/relayd" "${SRC_RELAYD}"
-#cp ./relayd/relayd.toml "${OUT_DIR}/relayd.toml"
-#cp ./build/* "${OUT_DIR}"
+OUT_DIR="${1}/$strapp"
+SRC_RELAYD=github.com/33cn/plugin/plugin/dapp/relay/cmd/relayd
+FLAG=$2
+
+mkdir -p "${OUT_DIR}"
+# shellcheck disable=SC2086,1072
+go build ${FLAG} -v -o "${OUT_DIR}/relayd" "${SRC_RELAYD}"
+cp ./relayd/relayd.toml "${OUT_DIR}/relayd.toml"
+cp ./build/* "${OUT_DIR}"
 
 OUT_TESTDIR="${1}/dapptest/$strapp"
 mkdir -p "${OUT_TESTDIR}"
diff --git a/plugin/dapp/relay/cmd/build/testcase.sh b/plugin/dapp/relay/cmd/build/testcase.sh
index e7a33b622..6fcd478ed 100755
--- a/plugin/dapp/relay/cmd/build/testcase.sh
+++ b/plugin/dapp/relay/cmd/build/testcase.sh
@@ -46,8 +46,10 @@ function relay_config() {
 function wait_btcd_up() {
     local count=20
     while [ $count -gt 0 ]; do
-        status=$(docker-compose ps | grep btcd | awk '{print $5}')
-        if [ "${status}" == "Up" ]; then
+        # docker compose ps 列取错(取到 CREATED 列)会导致永远重启 btcd，
+        # 且 ubuntu-22.04 runner 只有 compose v2，这里直接用 docker inspect 判状态
+        status=$(docker inspect -f '{{.State.Status}}' "${BTCD}" 2>/dev/null || true)
+        if [ "${status}" == "running" ]; then
             break
         fi
         docker compose logs btcd
@@ -334,6 +336,10 @@ function relay_test() {
         count=$((count - 1))
         if [ $count -le 0 ]; then
             echo "wrong relay status finish real buy order id"
+            echo "=========== # relayd logs ==========="
+            docker compose logs relayd 2>&1 | tail -80
+            echo "=========== # chain33 relay logs ==========="
+            docker compose logs chain33 2>&1 | grep -iE "verify|relay" | tail -60
             exit 1
         fi
     done
diff --git a/plugin/dapp/relay/executor/relay_test.go b/plugin/dapp/relay/executor/relay_test.go
index 77cf02dcd..6f9f4cd82 100644
--- a/plugin/dapp/relay/executor/relay_test.go
+++ b/plugin/dapp/relay/executor/relay_test.go
@@ -5,14 +5,21 @@
 package executor
 
 import (
+	"bytes"
 	"testing"
 
 	apimock "github.com/33cn/chain33/client/mocks"
+	"github.com/33cn/chain33/common"
 	"github.com/33cn/chain33/common/address"
 	"github.com/33cn/chain33/common/db"
 	"github.com/33cn/chain33/common/db/mocks"
 	"github.com/33cn/chain33/types"
 	ty "github.com/33cn/plugin/plugin/dapp/relay/types"
+	"github.com/btcsuite/btcd/btcutil"
+	"github.com/btcsuite/btcd/chaincfg"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/txscript"
+	"github.com/btcsuite/btcd/wire"
 	"github.com/stretchr/testify/mock"
 	"github.com/stretchr/testify/suite"
 
@@ -372,6 +379,47 @@ func TestRunSuiteRelay(t *testing.T) {
 	suite.Run(t, log)
 }
 
+// TestVerifyBtcTxContentSimnet 集成测试场景回归: btcd simnet 的订单收款地址
+// 必须按 simnet 网络参数解析输出地址，硬编码 MainNet 会因地址编码不一致误判
+func TestVerifyBtcTxContentSimnet(t *testing.T) {
+	hash160 := bytes.Repeat([]byte{0xab}, 20)
+	addr, err := btcutil.NewAddressPubKeyHash(hash160, &chaincfg.SimNetParams)
+	if err != nil {
+		t.Fatal(err)
+	}
+	pkScript, err := txscript.PayToAddrScript(addr)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	msgTx := wire.NewMsgTx(2)
+	// Deserialize 会把 vin 数 0 当作 witness marker，因此至少带一个输入
+	// (真实的 btc 交易也必然有输入)
+	msgTx.AddTxIn(wire.NewTxIn(wire.NewOutPoint(&chainhash.Hash{}, 0xffffffff), nil, nil))
+	msgTx.AddTxOut(wire.NewTxOut(100000, pkScript))
+	var buf bytes.Buffer
+	if err := msgTx.SerializeNoWitness(&buf); err != nil {
+		t.Fatal(err)
+	}
+	rawHash := txidFromMsgTx(msgTx)
+	// reverse 原地修改切片，先拷贝一份作为期望值
+	want := append([]byte{}, rawHash...)
+	btcTx := &ty.BtcTransaction{
+		Hash:  common.ToHex(reverse(rawHash)),
+		RawTx: common.ToHex(buf.Bytes()),
+	}
+	spv := &ty.BtcSpv{Hash: btcTx.Hash}
+	order := &ty.RelayOrder{XAddr: addr.EncodeAddress(), XAmount: 100000}
+
+	got, err := verifyBtcTxContent(btcTx, spv, order)
+	if err != nil {
+		t.Fatalf("verifyBtcTxContent simnet addr: %v", err)
+	}
+	if !bytes.Equal(got, want) {
+		t.Fatalf("verifyBtcTxContent rawHash mismatch, got %x want %x", got, want)
+	}
+}
+
 //////////////////////////////////////
 
 type suiteBtcHeader struct {
diff --git a/plugin/dapp/relay/executor/relaybtc.go b/plugin/dapp/relay/executor/relaybtc.go
index 161be72b6..caf8aef39 100644
--- a/plugin/dapp/relay/executor/relaybtc.go
+++ b/plugin/dapp/relay/executor/relaybtc.go
@@ -16,6 +16,7 @@ import (
 	"github.com/33cn/chain33/common/merkle"
 	"github.com/33cn/chain33/types"
 	ty "github.com/33cn/plugin/plugin/dapp/relay/types"
+	"github.com/btcsuite/btcd/btcutil"
 	"github.com/btcsuite/btcd/chaincfg"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/txscript"
@@ -342,9 +343,13 @@ func verifyBtcTxContent(btcTx *ty.BtcTransaction, spv *ty.BtcSpv, order *ty.Rela
 		return nil, ty.ErrRelayBtcTxHashErr
 	}
 
+	// 订单收款地址可能属于任一 btc 网络(集成测试为 simnet)，
+	// 用能成功解码订单地址的网络参数解析输出地址，
+	// 否则硬编码 MainNet 会把 simnet 输出地址重编码成 mainnet 地址，永远匹配不上
+	params := addrNetParams(order.XAddr)
 	var foundtx bool
 	for _, out := range msgTx.TxOut {
-		_, addrs, _, err := txscript.ExtractPkScriptAddrs(out.PkScript, &chaincfg.MainNetParams)
+		_, addrs, _, err := txscript.ExtractPkScriptAddrs(out.PkScript, params)
 		if err != nil {
 			continue
 		}
@@ -390,6 +395,21 @@ func (b *btcStore) verifyCmdBtcTx(verify *ty.RelayVerifyCli) error {
 	return nil
 }
 
+// addrNetParams 返回能成功解码 addr 的 btc 网络参数，全部失败时回退 MainNet
+func addrNetParams(addr string) *chaincfg.Params {
+	for _, p := range []*chaincfg.Params{
+		&chaincfg.MainNetParams,
+		&chaincfg.TestNet3Params,
+		&chaincfg.RegressionNetParams,
+		&chaincfg.SimNetParams,
+	} {
+		if _, err := btcutil.DecodeAddress(addr, p); err == nil {
+			return p
+		}
+	}
+	return &chaincfg.MainNetParams
+}
+
 // decodeRawTx 将 hex 编码的原始 btc 交易反序列化为 MsgTx
 func decodeRawTx(rawTx string) (*wire.MsgTx, error) {
 	data, err := common.FromHex(rawTx)