diff --git a/app.js b/app.js
index b2fd76c..f88b5e1 100644
--- a/app.js
+++ b/app.js
@@ -480,6 +480,7 @@ class CLIProxyManager {
         const iflowOauthBtn = document.getElementById('iflow-oauth-btn');
         const iflowOpenLink = document.getElementById('iflow-open-link');
         const iflowCopyLink = document.getElementById('iflow-copy-link');
+        const iflowCookieSubmit = document.getElementById('iflow-cookie-submit');
 
         if (iflowOauthBtn) {
             iflowOauthBtn.addEventListener('click', () => this.startIflowOAuth());
@@ -490,6 +491,9 @@ class CLIProxyManager {
         if (iflowCopyLink) {
             iflowCopyLink.addEventListener('click', () => this.copyIflowLink());
         }
+        if (iflowCookieSubmit) {
+            iflowCookieSubmit.addEventListener('click', () => this.submitIflowCookieLogin());
+        }
 
         // 使用统计
         const refreshUsageStats = document.getElementById('refresh-usage-stats');
diff --git a/i18n.js b/i18n.js
index 3df27ce..1290754 100644
--- a/i18n.js
+++ b/i18n.js
@@ -388,6 +388,20 @@ const i18n = {
             'auth_login.iflow_oauth_status_error': '认证失败:',
             'auth_login.iflow_oauth_start_error': '启动 iFlow OAuth 失败:',
             'auth_login.iflow_oauth_polling_error': '检查认证状态失败:',
+            'auth_login.iflow_cookie_title': 'iFlow Cookie 登录',
+            'auth_login.iflow_cookie_label': 'Cookie 内容:',
+            'auth_login.iflow_cookie_placeholder': '粘贴浏览器中的 Cookie，例如 sessionid=...;',
+            'auth_login.iflow_cookie_hint': '直接提交 Cookie 以完成登录（无需打开授权链接），服务端将自动保存凭据。',
+            'auth_login.iflow_cookie_button': '提交 Cookie 登录',
+            'auth_login.iflow_cookie_status_success': 'Cookie 登录成功，凭据已保存。',
+            'auth_login.iflow_cookie_status_error': 'Cookie 登录失败:',
+            'auth_login.iflow_cookie_start_error': '提交 Cookie 登录失败:',
+            'auth_login.iflow_cookie_required': '请先填写 Cookie 内容',
+            'auth_login.iflow_cookie_result_title': 'Cookie 登录结果',
+            'auth_login.iflow_cookie_result_email': '账号',
+            'auth_login.iflow_cookie_result_expired': '过期时间',
+            'auth_login.iflow_cookie_result_path': '保存路径',
+            'auth_login.iflow_cookie_result_type': '类型',
 
             // 使用统计
             'usage_stats.title': '使用统计',
@@ -922,6 +936,20 @@ const i18n = {
             'auth_login.iflow_oauth_status_error': 'Authentication failed:',
             'auth_login.iflow_oauth_start_error': 'Failed to start iFlow OAuth:',
             'auth_login.iflow_oauth_polling_error': 'Failed to check authentication status:',
+            'auth_login.iflow_cookie_title': 'iFlow Cookie Login',
+            'auth_login.iflow_cookie_label': 'Cookie Value:',
+            'auth_login.iflow_cookie_placeholder': 'Paste browser cookie, e.g. sessionid=...;',
+            'auth_login.iflow_cookie_hint': 'Submit an existing cookie to finish login without opening the authorization link; the credential file will be saved automatically.',
+            'auth_login.iflow_cookie_button': 'Submit Cookie Login',
+            'auth_login.iflow_cookie_status_success': 'Cookie login succeeded and credentials are saved.',
+            'auth_login.iflow_cookie_status_error': 'Cookie login failed:',
+            'auth_login.iflow_cookie_start_error': 'Failed to submit cookie login:',
+            'auth_login.iflow_cookie_required': 'Please provide the Cookie value first.',
+            'auth_login.iflow_cookie_result_title': 'Cookie Login Result',
+            'auth_login.iflow_cookie_result_email': 'Account',
+            'auth_login.iflow_cookie_result_expired': 'Expires At',
+            'auth_login.iflow_cookie_result_path': 'Saved Path',
+            'auth_login.iflow_cookie_result_type': 'Type',
 
             // Usage Statistics
             'usage_stats.title': 'Usage Statistics',
diff --git a/index.html b/index.html
index 3fc0b1d..4e2e8a3 100644
--- a/index.html
+++ b/index.html
@@ -778,6 +778,34 @@
                                         <div id="iflow-oauth-status" class="form-hint" style="margin-top: 10px;"></div>
                                     </div>
                                 </div>
+                                <div class="card-content" style="border-top: 1px solid var(--border-color); margin-top: 16px; padding-top: 16px;">
+                                    <h4 style="margin-bottom: 10px;" data-i18n="auth_login.iflow_cookie_title">iFlow Cookie 登录</h4>
+                                    <p class="form-hint" data-i18n="auth_login.iflow_cookie_hint">
+                                        直接提交 Cookie 完成登录并保存凭据，无需打开授权链接。
+                                    </p>
+                                    <div class="form-group">
+                                        <label for="iflow-cookie-input" data-i18n="auth_login.iflow_cookie_label">Cookie 内容:</label>
+                                        <textarea id="iflow-cookie-input" rows="3" data-i18n-placeholder="auth_login.iflow_cookie_placeholder" placeholder="粘贴浏览器中的 Cookie"></textarea>
+                                    </div>
+                                    <div class="form-actions">
+                                        <button id="iflow-cookie-submit" class="btn btn-primary">
+                                            <i class="fas fa-cookie-bite"></i> <span data-i18n="auth_login.iflow_cookie_button">提交 Cookie 登录</span>
+                                        </button>
+                                    </div>
+                                    <div id="iflow-cookie-status" class="form-hint" style="margin-top: 10px;"></div>
+                                    <div id="iflow-cookie-result" class="vertex-import-result" style="display: none;">
+                                        <div class="vertex-import-result-header">
+                                            <i class="fas fa-check-circle"></i>
+                                            <span data-i18n="auth_login.iflow_cookie_result_title">Cookie 登录结果</span>
+                                        </div>
+                                        <ul>
+                                            <li><span data-i18n="auth_login.iflow_cookie_result_email">账号</span>: <code id="iflow-cookie-result-email">-</code></li>
+                                            <li><span data-i18n="auth_login.iflow_cookie_result_expired">过期时间</span>: <code id="iflow-cookie-result-expired">-</code></li>
+                                            <li><span data-i18n="auth_login.iflow_cookie_result_path">保存路径</span>: <code id="iflow-cookie-result-path">-</code></li>
+                                            <li><span data-i18n="auth_login.iflow_cookie_result_type">类型</span>: <code id="iflow-cookie-result-type">-</code></li>
+                                        </ul>
+                                    </div>
+                                </div>
                             </div>
                         </section>
 
diff --git a/src/modules/oauth.js b/src/modules/oauth.js
index 01a1258..61e7ad5 100644
--- a/src/modules/oauth.js
+++ b/src/modules/oauth.js
@@ -862,6 +862,88 @@ export const oauthModule = {
             status.style.color = '';
             status.className = '';
         }
+    },
+
+    // 提交 iFlow Cookie 登录
+    async submitIflowCookieLogin() {
+        const cookieInput = document.getElementById('iflow-cookie-input');
+        const statusEl = document.getElementById('iflow-cookie-status');
+        const submitBtn = document.getElementById('iflow-cookie-submit');
+        const cookieValue = cookieInput ? cookieInput.value.trim() : '';
+
+        this.renderIflowCookieResult(null);
+
+        if (!cookieValue) {
+            this.showNotification(i18n.t('auth_login.iflow_cookie_required'), 'error');
+            if (statusEl) {
+                statusEl.textContent = `${i18n.t('auth_login.iflow_cookie_status_error')} ${i18n.t('auth_login.iflow_cookie_required')}`;
+                statusEl.style.color = 'var(--error-text)';
+            }
+            return;
+        }
+
+        try {
+            if (submitBtn) {
+                submitBtn.disabled = true;
+            }
+            if (statusEl) {
+                statusEl.textContent = i18n.t('auth_login.iflow_oauth_status_waiting');
+                statusEl.style.color = 'var(--warning-text)';
+            }
+
+            const response = await this.makeRequest('/iflow-auth-url', {
+                method: 'POST',
+                body: JSON.stringify({ cookie: cookieValue })
+            });
+
+            this.renderIflowCookieResult(response);
+            if (statusEl) {
+                statusEl.textContent = i18n.t('auth_login.iflow_cookie_status_success');
+                statusEl.style.color = 'var(--success-text)';
+            }
+            if (cookieInput) {
+                cookieInput.value = '';
+            }
+
+            this.showNotification(i18n.t('auth_login.iflow_cookie_status_success'), 'success');
+            this.loadAuthFiles();
+        } catch (error) {
+            if (statusEl) {
+                statusEl.textContent = `${i18n.t('auth_login.iflow_cookie_status_error')} ${error.message}`;
+                statusEl.style.color = 'var(--error-text)';
+            }
+            this.showNotification(`${i18n.t('auth_login.iflow_cookie_start_error')} ${error.message}`, 'error');
+        } finally {
+            if (submitBtn) {
+                submitBtn.disabled = false;
+            }
+        }
+    },
+
+    renderIflowCookieResult(result = null) {
+        const container = document.getElementById('iflow-cookie-result');
+        const emailEl = document.getElementById('iflow-cookie-result-email');
+        const expiredEl = document.getElementById('iflow-cookie-result-expired');
+        const pathEl = document.getElementById('iflow-cookie-result-path');
+        const typeEl = document.getElementById('iflow-cookie-result-type');
+
+        if (!container || !emailEl || !expiredEl || !pathEl || !typeEl) {
+            return;
+        }
+
+        if (!result) {
+            container.style.display = 'none';
+            emailEl.textContent = '-';
+            expiredEl.textContent = '-';
+            pathEl.textContent = '-';
+            typeEl.textContent = '-';
+            return;
+        }
+
+        emailEl.textContent = result.email || '-';
+        expiredEl.textContent = result.expired || '-';
+        pathEl.textContent = result.saved_path || result.savedPath || result.path || '-';
+        typeEl.textContent = result.type || '-';
+        container.style.display = 'block';
     }
 };
-