diff --git a/Aurask_Technical_Operations_Plan.md b/Aurask_Technical_Operations_Plan.md
index 4c57954..2fc1c5d 100644
--- a/Aurask_Technical_Operations_Plan.md
+++ b/Aurask_Technical_Operations_Plan.md
@@ -10,7 +10,7 @@ Aurask 当前处于 **可运行 MVP / 初版门户** 阶段，已覆盖：
 - Python 模块化后端
 - 标准库 HTTP Gateway
 - 租户、用户、API Key、Session
-- `LY SSO` / Google 登录入口
+- Google 登录入口
 - 首次登录自动创建独立 workspace
 - 配额 / TBU / 订单 / 支付闭环
 - 工作流模板编排
@@ -92,7 +92,6 @@ Browser
 未登录：
 
 - 渲染 `/signin`
-- 提供 `Use LY SSO`
 - 提供 `Continue with Google`
 
 已登录：
@@ -107,11 +106,7 @@ Browser
 
 当前支持：
 
-1. `LY SSO`
-   - 以按钮形式进入
-   - 当前实现为配置驱动的本地接入层
-   - 通过 `AURASK_LY_SSO_USERNAME` / `AURASK_LY_SSO_PASSWORD` 控制
-2. Google
+1. Google
    - 通过 `AURASK_GOOGLE_CLIENT_ID` 开启
    - 首次注册后自动开通独立 tenant + user + workspace
 
@@ -153,7 +148,7 @@ Browser
 - 公网域名
 - API 地址
 - Langflow / AnythingLLM 嵌入地址
-- `LY SSO` / Google 开关
+- Google 开关
 - DevCloud 镜像 / NodePort 默认值
 
 ### `knowledge_base.py`
@@ -180,7 +175,6 @@ Browser
 GET  /health
 GET  /plans
 GET  /auth/config
-POST /auth/ly-sso/login
 POST /auth/google/login
 POST /demo/bootstrap
 POST /tenants
@@ -307,7 +301,6 @@ python -m unittest discover -s tests -v
 
 - MVP 核心业务闭环
 - 桥接配置契约
-- `LY SSO` 登录
 - Google 首次登录建 workspace
 - Session 认证
 
diff --git a/README.md b/README.md
index 4df0061..df85249 100644
--- a/README.md
+++ b/README.md
@@ -10,8 +10,7 @@ Aurask 当前是一个按产品边界拆分的首版实现，根目录保持为
 当前版本已经补齐了用户门户登录闭环：
 
 - `/signin` 风格化登录页
-- `LY SSO` 登录入口
-- Google 首次注册/登录后自动创建用户独立 workspace
+- Google 首次注册/登录后自动创建独立 workspace
 - 登录后双标签页工作台：
   - `Workflows` 内嵌 `Langflow`
   - `Knowledge Base` 内嵌 `AnythingLLM`
@@ -42,7 +41,6 @@ py -3 -m aurask demo --reset
 - `GET /health`
 - `GET /plans`
 - `GET /auth/config`
-- `POST /auth/ly-sso/login`
 - `POST /auth/google/login`
 - `POST /demo/bootstrap`
 - `POST /tenants`
@@ -77,9 +75,6 @@ AURASK_PUBLIC_BASE_URL=https://aurask.xyz
 AURASK_PUBLIC_API_BASE_URL=https://aurask.xyz/api
 AURASK_PUBLIC_LANGFLOW_URL=https://aurask.xyz/runtime/langflow/
 AURASK_PUBLIC_ANYTHINGLLM_URL=https://aurask.xyz/runtime/anythingllm/
-AURASK_LY_SSO_ENABLED=true
-AURASK_LY_SSO_USERNAME=ly-xujian1
-AURASK_LY_SSO_PASSWORD=<inject-secret>
 AURASK_GOOGLE_ENABLED=true
 AURASK_GOOGLE_CLIENT_ID=<google-client-id>
 AURASK_SESSION_TTL_DAYS=7
@@ -124,7 +119,7 @@ cmd /c "py -3 -m unittest discover -s tests -v"
 
 - MVP 业务闭环
 - PostgreSQL / PGVector / Redis / AnythingLLM / Langflow 桥接契约
-- `LY SSO` / Google 登录与 session
+- Google 登录与 session
 
 ## 相关文档
 
diff --git a/api/README.md b/api/README.md
index 6debd45..39b8c38 100644
--- a/api/README.md
+++ b/api/README.md
@@ -9,7 +9,7 @@
 - 租户、用户、API Key、Session：`api/aurask/auth.py`
 - 套餐、订单、支付、TBU：`api/aurask/plans.py`、`api/aurask/billing.py`、`api/aurask/quota.py`
 - 工作流编排：`api/aurask/orchestrator.py`
-- AnythingLLM workspace / 文档接入：`api/aurask/knowledge_base.py`
+- AnythingLLM workspace / 文档接入门面：`api/aurask/knowledge_base.py`
 - PostgreSQL / PGVector / Redis / AnythingLLM / Langflow 桥接：`api/aurask/bridges/`
 - 门户站点配置：`api/aurask/site_config.py`
 
@@ -22,7 +22,7 @@ Aurask 现在支持两类 Bearer Token：
    - 由创建租户/用户或 demo bootstrap 返回
 2. Session Token
    - 适用于 `protal/` 登录态
-   - 由 `LY SSO` 或 Google 登录接口签发
+   - 由 Google 登录接口签发
 
 ## 公开接口
 
@@ -30,7 +30,6 @@ Aurask 现在支持两类 Bearer Token：
 GET  /health
 GET  /plans
 GET  /auth/config
-POST /auth/ly-sso/login
 POST /auth/google/login
 POST /demo/bootstrap
 POST /tenants
@@ -60,7 +59,7 @@ GET  /admin/bridge-status
 
 - 公网站点地址
 - API 地址
-- `LY SSO` / Google 开关
+- Google 开关
 - Langflow / AnythingLLM iframe 地址
 - DevCloud 对齐后的镜像与 NodePort 默认值
 
@@ -73,11 +72,6 @@ AURASK_PUBLIC_BASE_URL=https://aurask.xyz
 AURASK_PUBLIC_API_BASE_URL=https://aurask.xyz/api
 AURASK_PUBLIC_LANGFLOW_URL=https://aurask.xyz/runtime/langflow/
 AURASK_PUBLIC_ANYTHINGLLM_URL=https://aurask.xyz/runtime/anythingllm/
-AURASK_LY_SSO_ENABLED=true
-AURASK_LY_SSO_LOGIN_URL=
-AURASK_LY_SSO_USERNAME=ly-xujian1
-AURASK_LY_SSO_PASSWORD=<ly-sso-password>
-AURASK_LY_SSO_EMAIL_DOMAIN=ly.szlanyou.local
 AURASK_GOOGLE_ENABLED=true
 AURASK_GOOGLE_CLIENT_ID=<google-client-id>
 AURASK_GOOGLE_TOKENINFO_URL=https://oauth2.googleapis.com/tokeninfo
diff --git a/api/aurask/api.py b/api/aurask/api.py
index 9a6f5bf..e24fcf2 100644
--- a/api/aurask/api.py
+++ b/api/aurask/api.py
@@ -50,10 +50,6 @@ def make_handler(app: AuraskApp):
                 if method == "GET" and path == "/auth/config":
                     self._send(200, app.public_auth_config())
                     return
-                if method == "POST" and path == "/auth/ly-sso/login":
-                    body = self._read_json()
-                    self._send(200, app.login_with_ly_sso(username=body.get("username", ""), password=body.get("password", "")))
-                    return
                 if method == "POST" and path == "/auth/google/login":
                     body = self._read_json()
                     self._send(200, app.login_with_google(id_token=body.get("id_token", "")))
diff --git a/api/aurask/app.py b/api/aurask/app.py
index 5b85fa4..3ab9d98 100644
--- a/api/aurask/app.py
+++ b/api/aurask/app.py
@@ -54,22 +54,6 @@ class AuraskApp:
     def public_auth_config(self) -> dict:
         return self.site_config.public_dict()
 
-    def login_with_ly_sso(self, *, username: str, password: str) -> dict:
-        if not self.site_config.ly_sso_enabled:
-            raise AuthError("LY SSO is not enabled")
-        if not self.site_config.ly_sso_password:
-            raise AuthError("LY SSO password secret is not configured")
-        if username != self.site_config.ly_sso_username or password != self.site_config.ly_sso_password:
-            raise AuthError("invalid LY SSO credentials")
-        email = os.getenv("AURASK_LY_SSO_EMAIL", f"{username}@{self.site_config.ly_sso_email_domain}")
-        return self._sign_in_external_identity(
-            provider="ly_sso",
-            subject=username,
-            email=email,
-            display_name=username,
-            avatar_url="",
-        )
-
     def login_with_google(self, *, id_token: str) -> dict:
         claims = self._verify_google_id_token(id_token)
         email = claims.get("email", "").strip().lower()
diff --git a/api/aurask/site_config.py b/api/aurask/site_config.py
index 5b1f150..431d04f 100644
--- a/api/aurask/site_config.py
+++ b/api/aurask/site_config.py
@@ -17,11 +17,6 @@ class SiteConfig:
     public_api_base_url: str
     langflow_embed_url: str
     anythingllm_embed_url: str
-    ly_sso_enabled: bool
-    ly_sso_login_url: str
-    ly_sso_username: str
-    ly_sso_password: str
-    ly_sso_email_domain: str
     google_enabled: bool
     google_client_id: str
     google_tokeninfo_url: str
@@ -40,11 +35,6 @@ class SiteConfig:
             public_api_base_url=os.getenv("AURASK_PUBLIC_API_BASE_URL", f"{public_base_url}/api").rstrip("/"),
             langflow_embed_url=os.getenv("AURASK_PUBLIC_LANGFLOW_URL", f"{public_base_url}/runtime/langflow/"),
             anythingllm_embed_url=os.getenv("AURASK_PUBLIC_ANYTHINGLLM_URL", f"{public_base_url}/runtime/anythingllm/"),
-            ly_sso_enabled=_enabled("AURASK_LY_SSO_ENABLED", True),
-            ly_sso_login_url=os.getenv("AURASK_LY_SSO_LOGIN_URL", ""),
-            ly_sso_username=os.getenv("AURASK_LY_SSO_USERNAME", "ly-xujian1"),
-            ly_sso_password=os.getenv("AURASK_LY_SSO_PASSWORD", ""),
-            ly_sso_email_domain=os.getenv("AURASK_LY_SSO_EMAIL_DOMAIN", "ly.szlanyou.local"),
             google_enabled=_enabled("AURASK_GOOGLE_ENABLED", bool(os.getenv("AURASK_GOOGLE_CLIENT_ID", ""))),
             google_client_id=os.getenv("AURASK_GOOGLE_CLIENT_ID", ""),
             google_tokeninfo_url=os.getenv("AURASK_GOOGLE_TOKENINFO_URL", "https://oauth2.googleapis.com/tokeninfo"),
@@ -61,11 +51,6 @@ class SiteConfig:
             "public_base_url": self.public_base_url,
             "public_api_base_url": self.public_api_base_url,
             "auth": {
-                "ly_sso": {
-                    "enabled": self.ly_sso_enabled,
-                    "login_url": self.ly_sso_login_url,
-                    "username_hint": self.ly_sso_username,
-                },
                 "google": {
                     "enabled": self.google_enabled,
                     "client_id": self.google_client_id,
diff --git a/api/requests/aurask-api.http b/api/requests/aurask-api.http
index 0e4ca19..13bff8c 100644
--- a/api/requests/aurask-api.http
+++ b/api/requests/aurask-api.http
@@ -7,15 +7,6 @@ GET http://127.0.0.1:8080/plans
 ### Portal auth config
 GET http://127.0.0.1:8080/auth/config
 
-### LY SSO login
-POST http://127.0.0.1:8080/auth/ly-sso/login
-Content-Type: application/json
-
-{
-  "username": "ly-xujian1",
-  "password": "replace-with-env-password"
-}
-
 ### Google login
 POST http://127.0.0.1:8080/auth/google/login
 Content-Type: application/json
diff --git a/deploy/k3s/README.md b/deploy/k3s/README.md
index 4c7067b..92ec180 100644
--- a/deploy/k3s/README.md
+++ b/deploy/k3s/README.md
@@ -3,7 +3,7 @@
 本文档基于当前仓库与 DevCloud 现网结构，兼顾两部分目标：
 
 - 保留已落地的 DevCloud `base + production overlay` 部署方式
-- 纳入本次新增的门户登录流、`LY SSO` / Google、Langflow / AnythingLLM 嵌入配置
+- 纳入本次新增的门户登录流、Google 登录、Langflow / AnythingLLM 嵌入配置
 
 ## 目录结构
 
@@ -95,8 +95,6 @@ deploy/k3s/
 - `AURASK_DEVCLOUD_WEB_IMAGE=registry.mydevcloud.love/devcloud/aurask-web:latest`
 - `AURASK_DEVCLOUD_API_NODE_URL=http://45.113.2.55:30091`
 - `AURASK_DEVCLOUD_WEB_NODE_URL=http://45.113.2.55:30090`
-- `AURASK_LY_SSO_ENABLED=true`
-- `AURASK_LY_SSO_USERNAME=ly-xujian1`
 - `AURASK_GOOGLE_ENABLED=true`
 - `AURASK_SESSION_TTL_DAYS=7`
 
@@ -107,7 +105,6 @@ deploy/k3s/
 - `AURASK_DATABASE_URL`
 - `AURASK_ANYTHINGLLM_API_KEY`
 - `AURASK_LANGFLOW_API_KEY`
-- `AURASK_LY_SSO_PASSWORD`
 - `AURASK_GOOGLE_CLIENT_ID`
 
 说明：
@@ -122,7 +119,7 @@ deploy/k3s/
 职责：
 
 - API Gateway
-- `LY SSO` / Google 登录
+- Google 登录
 - Session 签发与校验
 - 配额、订单、支付、工作流入口
 - 返回门户配置与嵌入 URL
diff --git a/deploy/k3s/base/aurask-config.yaml b/deploy/k3s/base/aurask-config.yaml
index 2dd1738..3f5298a 100644
--- a/deploy/k3s/base/aurask-config.yaml
+++ b/deploy/k3s/base/aurask-config.yaml
@@ -21,9 +21,6 @@ data:
   AURASK_REDIS_WORKFLOW_QUEUE: aurask:workflow-runs
   AURASK_ANYTHINGLLM_BASE_URL: http://anythingllm.aurask-runtime.svc.cluster.local:3001
   AURASK_LANGFLOW_BASE_URL: http://langflow-runtime.aurask-runtime.svc.cluster.local:7860
-  AURASK_LY_SSO_ENABLED: "true"
-  AURASK_LY_SSO_USERNAME: ly-xujian1
-  AURASK_LY_SSO_EMAIL_DOMAIN: ly.szlanyou.local
   AURASK_GOOGLE_ENABLED: "true"
   AURASK_SESSION_TTL_DAYS: "7"
   AURASK_CORS_ALLOW_ORIGIN: https://aurask.xyz
diff --git a/deploy/k3s/base/secrets.example.yaml b/deploy/k3s/base/secrets.example.yaml
index 7987830..501b2a4 100644
--- a/deploy/k3s/base/secrets.example.yaml
+++ b/deploy/k3s/base/secrets.example.yaml
@@ -8,5 +8,4 @@ stringData:
   AURASK_DATABASE_URL: postgresql://aurask:<postgres-password>@postgres.aurask-data.svc.cluster.local:5432/aurask
   AURASK_ANYTHINGLLM_API_KEY: <anythingllm-api-key>
   AURASK_LANGFLOW_API_KEY: <langflow-api-key>
-  AURASK_LY_SSO_PASSWORD: <ly-sso-password>
   AURASK_GOOGLE_CLIENT_ID: <google-oauth-client-id>
diff --git a/protal/README.md b/protal/README.md
index 510826c..084cd61 100644
--- a/protal/README.md
+++ b/protal/README.md
@@ -5,7 +5,6 @@
 ## 当前页面能力
 
 - 未登录时渲染 `/signin` 风格登录页
-- 支持 `LY SSO` 登录按钮与本地凭据提交
 - 支持 Google 登录入口
 - 新用户首次登录自动创建独立 workspace
 - 登录后显示：
@@ -18,7 +17,6 @@
 门户依赖以下 API：
 
 - `GET /auth/config`
-- `POST /auth/ly-sso/login`
 - `POST /auth/google/login`
 - `GET /auth/session`
 - `POST /auth/logout`
diff --git a/protal/main.js b/protal/main.js
index dd52b0a..71c1c28 100644
--- a/protal/main.js
+++ b/protal/main.js
@@ -8,7 +8,6 @@ const state = {
   sessionToken: window.localStorage.getItem(STORAGE_KEY) || "",
   profile: null,
   activeTab: window.localStorage.getItem(TAB_KEY) || "workflows",
-  lyFormOpen: false,
   loading: true,
   error: "",
 };
@@ -127,31 +126,6 @@ async function bootstrap() {
   }
 }
 
-async function submitLySso(event) {
-  event.preventDefault();
-  state.error = "";
-  render();
-  const form = new FormData(event.currentTarget);
-  try {
-    const payload = await request("/auth/ly-sso/login", {
-      method: "POST",
-      body: {
-        username: String(form.get("username") || "").trim(),
-        password: String(form.get("password") || ""),
-      },
-    });
-    persistSession(payload.token);
-    state.profile = payload;
-    state.lyFormOpen = false;
-    ensureDashboardRoute();
-  } catch (error) {
-    state.error = error.message || "LY SSO sign-in failed";
-  } finally {
-    render();
-    mountGoogleButton();
-  }
-}
-
 async function signInWithGoogle(idToken) {
   state.error = "";
   render();
@@ -177,7 +151,6 @@ async function logout() {
   }
   persistSession("");
   state.profile = null;
-  state.lyFormOpen = false;
   ensureSigninRoute();
   render();
   mountGoogleButton();
@@ -213,7 +186,6 @@ function renderStatusPills() {
 }
 
 function renderSignin() {
-  const lyConfig = state.config?.auth?.ly_sso || {};
   const googleConfig = state.config?.auth?.google || {};
   const googleEnabled = Boolean(googleConfig.enabled && googleConfig.client_id);
   app.innerHTML = `
@@ -231,37 +203,14 @@ function renderSignin() {
         <div class="signin-header">
           <p class="section-kicker">Welcome back</p>
           <h2>Sign in to Aurask</h2>
-          <p>Use your organization account first, or enable Google one-tap registration for self-serve users.</p>
+          <p>Continue with Google to access your workspace or create a new one on first sign-in.</p>
         </div>
-        <div class="signin-actions">
-          <button id="lyButton" class="auth-btn auth-btn-primary" type="button">Use LY SSO</button>
-          <button id="googleFallbackButton" class="auth-btn auth-btn-secondary" type="button" ${googleEnabled ? "" : "disabled"}>
-            Continue with Google
-          </button>
-        </div>
-        <div id="googleButton" class="google-box ${googleEnabled ? "" : "is-hidden"}"></div>
+        ${googleEnabled ? '<div id="googleButton" class="google-box"></div>' : '<div class="signin-actions"><button class="auth-btn auth-btn-secondary" type="button" disabled>Continue with Google</button></div>'}
         ${
           googleEnabled
             ? '<p class="signin-tip">Google new-user login provisions a dedicated Aurask workspace on first sign-in.</p>'
             : '<p class="signin-tip">Set `AURASK_GOOGLE_CLIENT_ID` to enable Google one-tap registration.</p>'
         }
-        ${
-          state.lyFormOpen
-            ? `
-              <form id="lyForm" class="ly-form">
-                <label>
-                  Username
-                  <input name="username" value="${escapeHtml(lyConfig.username_hint || "ly-xujian1")}" autocomplete="username" />
-                </label>
-                <label>
-                  Password
-                  <input name="password" type="password" autocomplete="current-password" placeholder="Enter LY SSO password" />
-                </label>
-                <button class="auth-btn auth-btn-primary" type="submit">Sign in with LY SSO</button>
-              </form>
-            `
-            : ""
-        }
         ${state.error ? `<p class="message error">${escapeHtml(state.error)}</p>` : ""}
         <div class="signin-footer">
           <span>Need a first workspace?</span>
@@ -270,21 +219,6 @@ function renderSignin() {
       </section>
     </main>
   `;
-
-  document.querySelector("#lyButton")?.addEventListener("click", () => {
-    if (lyConfig.login_url) {
-      window.location.href = lyConfig.login_url;
-      return;
-    }
-    state.lyFormOpen = !state.lyFormOpen;
-    render();
-    mountGoogleButton();
-  });
-
-  document.querySelector("#lyForm")?.addEventListener("submit", submitLySso);
-  document.querySelector("#googleFallbackButton")?.addEventListener("click", () => {
-    document.querySelector("#googleButton")?.scrollIntoView({ behavior: "smooth", block: "center" });
-  });
 }
 
 function renderDashboard() {
diff --git a/tests/test_auth_sessions.py b/tests/test_auth_sessions.py
index 1a0f3cc..3232c6c 100644
--- a/tests/test_auth_sessions.py
+++ b/tests/test_auth_sessions.py
@@ -15,7 +15,6 @@ from aurask.app import create_app
 class AuthSessionTests(unittest.TestCase):
     def setUp(self) -> None:
         self.env_keys = [
-            "AURASK_LY_SSO_PASSWORD",
             "AURASK_GOOGLE_ENABLED",
             "AURASK_GOOGLE_ALLOW_UNVERIFIED_ID_TOKEN",
             "AURASK_GOOGLE_CLIENT_ID",
@@ -29,18 +28,6 @@ class AuthSessionTests(unittest.TestCase):
             else:
                 os.environ[key] = value
 
-    def test_ly_sso_login_creates_session_and_workspace(self) -> None:
-        os.environ["AURASK_LY_SSO_PASSWORD"] = "local-secret"
-        app = create_app(None, reset=True)
-
-        payload = app.login_with_ly_sso(username="ly-xujian1", password="local-secret")
-        context = app.auth.authenticate(f"Bearer {payload['token']}")
-
-        self.assertEqual(context["token_type"], "session")
-        self.assertEqual(payload["workspace"]["tenant_id"], payload["tenant"]["id"])
-        self.assertEqual(payload["quota"]["plan_code"], "free_trial")
-        self.assertEqual(len(app.list_workspaces(payload["tenant"]["id"])), 1)
-
     def test_google_first_login_reuses_workspace_after_registration(self) -> None:
         os.environ["AURASK_GOOGLE_ENABLED"] = "true"
         os.environ["AURASK_GOOGLE_ALLOW_UNVERIFIED_ID_TOKEN"] = "true"
@@ -62,6 +49,7 @@ class AuthSessionTests(unittest.TestCase):
         self.assertFalse(second_login["is_new_user"])
         self.assertEqual(first_login["workspace"]["id"], second_login["workspace"]["id"])
         self.assertEqual(len(app.list_workspaces(first_login["tenant"]["id"])), 1)
+        self.assertEqual(app.auth.authenticate(f"Bearer {first_login['token']}")["token_type"], "session")
 
     def _fake_google_token(self, claims: dict) -> str:
         header = self._base64url({"alg": "none", "typ": "JWT"})