diff --git a/lib/frpc.js b/lib/frpc.js
index ba9b0c1..feb0759 100644
--- a/lib/frpc.js
+++ b/lib/frpc.js
@@ -153,8 +153,12 @@ function downloadFile(url, dest) {
 }
 
 function writeFrpcConfig(clawId, frpConfig, sshSecretKey, dashboardEnabled = true) {
-  const { auth_token, dashboard_local_port = 18789 } = frpConfig;
+  const { auth_token, dashboard_local_port = 18789, dashboard_host_header } = frpConfig;
   const ttyRemotePort = 10000 + Number(clawId);
+  const dashboardHostHeader = String(dashboard_host_header || '').trim();
+  const dashboardHostHeaderLine = dashboardHostHeader
+    ? `hostHeaderRewrite = "${dashboardHostHeader.replace(/"/g, '\\"')}"`
+    : '';
   const stcpBlock = sshSecretKey ? `
 [[proxies]]
 name = "ssh-${clawId}-secret"
@@ -175,6 +179,7 @@ name = "dashboard-${clawId}"
 type = "http"
 localPort = ${dashboard_local_port}
 subdomain = "${clawId}"
+${dashboardHostHeaderLine}
 ` : '';
   const toml = `# 由 clawd 自动生成，请勿手动修改
 serverAddr = "frp.claw.cutos.ai"
@@ -236,5 +241,6 @@ module.exports = {
   getDashboardInfo,
   resolveOpenclawConfigFile,
   startTtyd,
+  writeFrpcConfig,
   FrpcManager,
 };
diff --git a/package.json b/package.json
index 8c3d634..621737c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "clawd",
-  "version": "1.5.9",
+  "version": "1.5.10",
   "description": "Claw Box daemon - connects local Linux box to claw.cutos.ai via WebSocket",
   "main": "lib/client.js",
   "bin": {
diff --git a/test/frpc-config.test.js b/test/frpc-config.test.js
new file mode 100644
index 0000000..164e29b
--- /dev/null
+++ b/test/frpc-config.test.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const os = require('node:os');
+const path = require('node:path');
+
+const configDir = fs.mkdtempSync(path.join(os.tmpdir(), 'clawd-frpc-'));
+process.env.CLAWD_CONFIG_DIR = configDir;
+
+const { writeFrpcConfig } = require('../lib/frpc');
+
+test('dashboard proxy can rewrite Host header for CutOS pi-web', () => {
+  writeFrpcConfig(1045, {
+    auth_token: 'test-token',
+    dashboard_local_port: 30141,
+    dashboard_host_header: '127.0.0.1',
+  }, null, true);
+
+  const toml = fs.readFileSync(path.join(configDir, 'frpc.toml'), 'utf8');
+  assert.match(toml, /localPort = 30141/);
+  assert.match(toml, /subdomain = "1045"/);
+  assert.match(toml, /hostHeaderRewrite = "127\.0\.0\.1"/);
+});