diff --git a/.env.sample b/.env.sample
index 78e16e8..b914814 100644
--- a/.env.sample
+++ b/.env.sample
@@ -13,3 +13,4 @@ OIDC_CLIENT_ID=
 OIDC_CLIENT_SECRET=
 OIDC_REDIRECT_URL=
 OIDC_SCOPES=openid profile email
+IDP_SERVICE_URL=
diff --git a/README.md b/README.md
index 6db302e..23b4325 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@ docker compose down
 - `OIDC_CLIENT_SECRET`
 - `OIDC_REDIRECT_URL`
 - `OIDC_SCOPES` (예: `openid profile email`)
+- `IDP_SERVICE_URL` (예: `https://idp.example.com`)
 
 ## DB 초기화
 - `kngil_DB` 덤프는 **처음 실행 시** 자동으로 로드됩니다.
diff --git a/docker-compose.yml b/docker-compose.yml
index f4d9872..4685060 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,6 +16,7 @@ services:
             OIDC_CLIENT_SECRET: ${OIDC_CLIENT_SECRET:-}
             OIDC_REDIRECT_URL: ${OIDC_REDIRECT_URL:-}
             OIDC_SCOPES: ${OIDC_SCOPES:-}
+            IDP_SERVICE_URL: ${IDP_SERVICE_URL:-}
         depends_on:
             - db
 
diff --git a/kngil/js/faq/faq_common.js b/kngil/js/faq/faq_common.js
index b8dda33..12d1539 100644
--- a/kngil/js/faq/faq_common.js
+++ b/kngil/js/faq/faq_common.js
@@ -910,6 +910,12 @@ function login() {
 }
 
 function mypage01() {
+  const raw = (window.IDP_SERVICE_URL || "").trim();
+  if (raw) {
+    const url = raw.replace(/\/+$/, "") + "/profile";
+    window.open(url, "idp_profile", "noopener,noreferrer");
+    return;
+  }
   $(".popup_wrap").hide();
   $(".btn_close").show();
   $("#pop_mypage01").show(0, function () {
diff --git a/kngil/js/mypage.js b/kngil/js/mypage.js
index 11770fc..16f0c56 100644
--- a/kngil/js/mypage.js
+++ b/kngil/js/mypage.js
@@ -20,7 +20,27 @@ function hide(id) {
    마이페이지 1단계 (비밀번호 인증)
    - 헤더에서 호출
 ========================= */
+function getIdpProfileUrl() {
+    const raw = (window.IDP_SERVICE_URL || '').trim()
+    if (!raw) {
+        return ''
+    }
+    return raw.replace(/\/+$/, '') + '/profile'
+}
+
+function openIdpProfile() {
+    const url = getIdpProfileUrl()
+    if (!url) {
+        return false
+    }
+    window.open(url, 'idp_profile', 'noopener,noreferrer')
+    return true
+}
+
 window.mypage01 = function () {
+    if (openIdpProfile()) {
+        return
+    }
     if (!window.IS_LOGIN) {
         if (typeof window.login === 'function') {
             window.login()
diff --git a/kngil/js/qa/qa_common.js b/kngil/js/qa/qa_common.js
index b8dda33..12d1539 100644
--- a/kngil/js/qa/qa_common.js
+++ b/kngil/js/qa/qa_common.js
@@ -910,6 +910,12 @@ function login() {
 }
 
 function mypage01() {
+  const raw = (window.IDP_SERVICE_URL || "").trim();
+  if (raw) {
+    const url = raw.replace(/\/+$/, "") + "/profile";
+    window.open(url, "idp_profile", "noopener,noreferrer");
+    return;
+  }
   $(".popup_wrap").hide();
   $(".btn_close").show();
   $("#pop_mypage01").show(0, function () {
diff --git a/kngil/skin/_header.php b/kngil/skin/_header.php
index 76422e8..9f19fff 100644
--- a/kngil/skin/_header.php
+++ b/kngil/skin/_header.php
@@ -3,8 +3,12 @@ if (session_status() === PHP_SESSION_NONE) {
     session_start();
 }
 
+require_once __DIR__ . '/../bbs/env.php';
+kngil_load_env_once(dirname(__DIR__, 2) . '/.env');
+
 $isLogin = isset($_SESSION['login']);
 $auth    = $_SESSION['login']['auth_bc'] ?? '';
+$idpServiceUrl = getenv('IDP_SERVICE_URL') ?: '';
 $loginName = $_SESSION['login']['idp_name'] ?? ($_SESSION['login']['user_nm'] ?? '');
 $loginEmail = $_SESSION['login']['idp_email'] ?? ($_SESSION['login']['email'] ?? '');
 $displayName = $loginName ?: ($loginEmail ?: '');
@@ -141,6 +145,7 @@ $isCompanyAdmin = in_array($auth, ['BS100100', 'BS100200', 'BS100300', 'BS100400
   </style>
   <script>
     window.IS_LOGIN = <?= isset($_SESSION['login']) ? 'true' : 'false' ?>;
+    window.IDP_SERVICE_URL = <?= json_encode($idpServiceUrl, JSON_UNESCAPED_SLASHES) ?>;
   </script>
 </head>