diff --git a/cwd-comments-admin/src/api/admin.ts b/cwd-comments-admin/src/api/admin.ts
index 26dc39d..e91e3f9 100644
--- a/cwd-comments-admin/src/api/admin.ts
+++ b/cwd-comments-admin/src/api/admin.ts
@@ -44,6 +44,7 @@ export type CommentSettingsResponse = {
 	adminKeySet?: boolean;
 	requireReview?: boolean;
 	blockedIps?: string[];
+	blockedEmails?: string[];
 };
 
 export type EmailNotifySettingsResponse = {
@@ -139,6 +140,7 @@ export function saveCommentSettings(data: {
 	adminKey?: string;
 	requireReview?: boolean;
 	blockedIps?: string[];
+	blockedEmails?: string[];
 }): Promise<{ message: string }> {
 	return put<{ message: string }>('/admin/settings/comments', data);
 }
@@ -147,6 +149,10 @@ export function blockIp(ip: string): Promise<{ message: string }> {
 	return post<{ message: string }>('/admin/comments/block-ip', { ip });
 }
 
+export function blockEmail(email: string): Promise<{ message: string }> {
+	return post<{ message: string }>('/admin/comments/block-email', { email });
+}
+
 export function exportComments(): Promise<any[]> {
 	return get<any[]>('/admin/comments/export');
 }
diff --git a/cwd-comments-admin/src/views/CommentsView.vue b/cwd-comments-admin/src/views/CommentsView.vue
index b5792a1..9326662 100644
--- a/cwd-comments-admin/src/views/CommentsView.vue
+++ b/cwd-comments-admin/src/views/CommentsView.vue
@@ -36,7 +36,15 @@
               />
               <div class="cell-author-main">
                 <div class="cell-author-name">{{ item.name }}</div>
-                <div class="cell-author-email">{{ item.email }}</div>
+                <div class="cell-author-email">
+                  <span
+                    class="cell-email-text"
+                    @click="handleBlockEmail(item)"
+                    title="屏蔽该邮箱"
+                  >
+                    {{ item.email }}
+                  </span>
+                </div>
                 <span class="cell-time">{{ formatDate(item.created) }}</span>
                 <div v-if="item.ipAddress" class="cell-author-ip">
                   <span class="cell-ip-text" @click="handleBlockIp(item)" title="屏蔽该 IP">{{ item.ipAddress }}</span>
@@ -180,6 +188,7 @@ import {
   deleteComment,
   updateCommentStatus,
   blockIp,
+  blockEmail,
 } from "../api/admin";
 
 const comments = ref<CommentItem[]>([]);
@@ -311,6 +320,21 @@ async function handleBlockIp(item: CommentItem) {
   }
 }
 
+async function handleBlockEmail(item: CommentItem) {
+  if (!item.email) {
+    return;
+  }
+  if (!window.confirm(`确认将邮箱 ${item.email} 加入黑名单吗？`)) {
+    return;
+  }
+  try {
+    const res = await blockEmail(item.email);
+    window.alert(res.message || "已加入邮箱黑名单");
+  } catch (e: any) {
+    error.value = e.message || "屏蔽邮箱失败";
+  }
+}
+
 onMounted(() => {
   loadComments();
 });
@@ -479,6 +503,14 @@ onMounted(() => {
   margin-bottom: 2px;
 }
 
+.cell-email-text {
+  cursor: pointer;
+}
+
+.cell-email-text:hover {
+  text-decoration: underline;
+}
+
 .cell-content-text {
   font-size: 13px;
   line-height: 1.5;
diff --git a/cwd-comments-admin/src/views/SettingsView.vue b/cwd-comments-admin/src/views/SettingsView.vue
index 1a01f1b..1c809fb 100644
--- a/cwd-comments-admin/src/views/SettingsView.vue
+++ b/cwd-comments-admin/src/views/SettingsView.vue
@@ -39,27 +39,9 @@
           <input v-model="avatarPrefix" class="form-input" type="text" />
         </div>
         <h3 class="card-title">安全设置</h3>
-        <div class="form-item">
-          <label class="form-label">允许调用的域名（多个域名用逗号分隔，留空则不限制。设置后仅匹配域名可调用前台评论组件。）</label>
-          <textarea
-            v-model="allowedDomains"
-            class="form-input"
-            rows="3"
-            placeholder="例如: example.com, test.com"
-          ></textarea>
-        </div>
-      <div class="form-item">
-        <label class="form-label">IP 黑名单（多个 IP 用逗号或换行分隔，留空则不限制）</label>
-        <textarea
-          v-model="blockedIps"
-          class="form-input"
-          rows="3"
-          placeholder="例如: 1.1.1.1, 2.2.2.2"
-        ></textarea>
-      </div>
         <div class="form-item">
           <label class="form-label">管理员评论密钥</label>
-          <div class="form-hint" style="margin-bottom: 4px;">
+          <div class="form-hint" style="margin-bottom: 4px">
             设置后前台使用管理员邮箱评论需输入此密钥。
           </div>
           <input
@@ -69,6 +51,40 @@
             autocomplete="new-password"
           />
         </div>
+        <div class="form-item">
+          <label class="form-label"
+            >允许调用的域名（多个域名用逗号分隔，留空则不限制。设置后仅匹配域名可调用前台评论组件。）</label
+          >
+          <textarea
+            v-model="allowedDomains"
+            class="form-input"
+            rows="3"
+            placeholder="例如: example.com, test.com"
+          ></textarea>
+        </div>
+        <div class="form-item">
+          <label class="form-label"
+            >IP 黑名单（多个 IP 用逗号或换行分隔，留空则不限制）</label
+          >
+          <textarea
+            v-model="blockedIps"
+            class="form-input"
+            rows="3"
+            placeholder="例如: 1.1.1.1, 2.2.2.2"
+          ></textarea>
+        </div>
+        <div class="form-item">
+          <label class="form-label"
+            >邮箱黑名单（多个邮箱用逗号或换行分隔，留空则不限制）</label
+          >
+          <textarea
+            v-model="blockedEmails"
+            class="form-input"
+            rows="3"
+            placeholder="例如: spam@example.com, bot@test.com"
+          ></textarea>
+        </div>
+
         <div class="card-actions">
           <button class="card-button" :disabled="savingComment" @click="saveComment">
             <span v-if="savingComment">保存中...</span>
@@ -205,7 +221,7 @@
           </button>
           <button
             class="card-button secondary"
-            style="margin-left: auto;"
+            style="margin-left: auto"
             @click="resetTemplatesToDefault"
           >
             恢复默认模板
@@ -315,6 +331,7 @@ const avatarPrefix = ref("");
 const commentAdminEnabled = ref(false);
 const allowedDomains = ref("");
 const blockedIps = ref("");
+const blockedEmails = ref("");
 const commentAdminKey = ref("");
 const adminKeySet = ref(false);
 const requireReview = ref(false);
@@ -375,8 +392,9 @@ async function load() {
     allowedDomains.value = commentRes.allowedDomains
       ? commentRes.allowedDomains.join(", ")
       : "";
-    blockedIps.value = commentRes.blockedIps
-      ? commentRes.blockedIps.join(", ")
+    blockedIps.value = commentRes.blockedIps ? commentRes.blockedIps.join(", ") : "";
+    blockedEmails.value = commentRes.blockedEmails
+      ? commentRes.blockedEmails.join(", ")
       : "";
     commentAdminKey.value = commentRes.adminKey || "";
     adminKeySet.value = !!commentRes.adminKeySet;
@@ -384,10 +402,8 @@ async function load() {
     emailGlobalEnabled.value = !!emailNotifyRes.globalEnabled;
 
     if (emailNotifyRes.templates) {
-      templateAdmin.value =
-        emailNotifyRes.templates.admin || DEFAULT_ADMIN_TEMPLATE;
-      templateReply.value =
-        emailNotifyRes.templates.reply || DEFAULT_REPLY_TEMPLATE;
+      templateAdmin.value = emailNotifyRes.templates.admin || DEFAULT_ADMIN_TEMPLATE;
+      templateReply.value = emailNotifyRes.templates.reply || DEFAULT_REPLY_TEMPLATE;
     } else {
       templateAdmin.value = DEFAULT_ADMIN_TEMPLATE;
       templateReply.value = DEFAULT_REPLY_TEMPLATE;
@@ -515,6 +531,10 @@ async function saveComment() {
         .split(/[,，\n]/)
         .map((d) => d.trim())
         .filter(Boolean),
+      blockedEmails: blockedEmails.value
+        .split(/[,，\n]/)
+        .map((d) => d.trim())
+        .filter(Boolean),
     });
 
     showToast(res.message || "保存成功", "success");
diff --git a/cwd-comments-api/src/api/public/postComment.ts b/cwd-comments-api/src/api/public/postComment.ts
index 82b5a8b..0b16d1b 100644
--- a/cwd-comments-api/src/api/public/postComment.ts
+++ b/cwd-comments-api/src/api/public/postComment.ts
@@ -63,6 +63,17 @@ export const postComment = async (c: Context<{ Bindings: Bindings }>) => {
     return c.json({ message: '当前 IP 已被限制评论，请联系站长进行处理' }, 403);
   }
 
+  const blockedEmailsRow = await c.env.CWD_DB.prepare('SELECT value FROM Settings WHERE key = ?')
+    .bind('comment_blocked_emails')
+    .first<{ value: string }>();
+  const blockedEmailsValue = blockedEmailsRow?.value || '';
+  const blockedEmails = blockedEmailsValue
+    ? blockedEmailsValue.split(',').map((d) => d.trim()).filter(Boolean)
+    : [];
+  if (blockedEmails.length && blockedEmails.includes(email)) {
+    return c.json({ message: '当前邮箱已被限制评论，请联系站长进行处理' }, 403);
+  }
+
   let isAdminComment = false;
 
   if (adminEmail && email === adminEmail) {
diff --git a/cwd-comments-api/src/index.ts b/cwd-comments-api/src/index.ts
index 7216a0e..53e124b 100644
--- a/cwd-comments-api/src/index.ts
+++ b/cwd-comments-api/src/index.ts
@@ -33,6 +33,7 @@ const COMMENT_ALLOWED_DOMAINS_KEY = 'comment_allowed_domains';
 const COMMENT_ADMIN_KEY_HASH_KEY = 'comment_admin_key_hash';
 const COMMENT_REQUIRE_REVIEW_KEY = 'comment_require_review';
 const COMMENT_BLOCKED_IPS_KEY = 'comment_blocked_ips';
+const COMMENT_BLOCKED_EMAILS_KEY = 'comment_blocked_emails';
 
 
 async function loadCommentSettings(env: Bindings) {
@@ -47,10 +48,11 @@ async function loadCommentSettings(env: Bindings) {
 		COMMENT_ALLOWED_DOMAINS_KEY,
 		COMMENT_ADMIN_KEY_HASH_KEY,
 		COMMENT_REQUIRE_REVIEW_KEY,
-		COMMENT_BLOCKED_IPS_KEY
+		COMMENT_BLOCKED_IPS_KEY,
+		COMMENT_BLOCKED_EMAILS_KEY
 	];
 	const { results } = await env.CWD_DB.prepare(
-		'SELECT key, value FROM Settings WHERE key IN (?, ?, ?, ?, ?, ?, ?, ?)'
+		'SELECT key, value FROM Settings WHERE key IN (?, ?, ?, ?, ?, ?, ?, ?, ?)'
 	)
 		.bind(...keys)
 		.all<{ key: string; value: string }>();
@@ -73,6 +75,11 @@ async function loadCommentSettings(env: Bindings) {
 		? blockedIpsRaw.split(',').map((d) => d.trim()).filter(Boolean)
 		: [];
 
+	const blockedEmailsRaw = map.get(COMMENT_BLOCKED_EMAILS_KEY) ?? '';
+	const blockedEmails = blockedEmailsRaw
+		? blockedEmailsRaw.split(',').map((d) => d.trim()).filter(Boolean)
+		: [];
+
 	// 解析允许的域名列表
 	const allowedDomainsRaw = map.get(COMMENT_ALLOWED_DOMAINS_KEY) ?? '';
 	const allowedDomains = allowedDomainsRaw
@@ -87,6 +94,7 @@ async function loadCommentSettings(env: Bindings) {
 		allowedDomains,
 		requireReview,
 		blockedIps,
+		blockedEmails,
 		adminKey: map.get(COMMENT_ADMIN_KEY_HASH_KEY) ?? null,
 		adminKeySet: !!map.get(COMMENT_ADMIN_KEY_HASH_KEY)
 	};
@@ -103,6 +111,7 @@ async function saveCommentSettings(
 		adminKey?: string;
 		requireReview?: boolean;
 		blockedIps?: string[];
+		blockedEmails?: string[];
 	}
 ) {
 	await env.CWD_DB.prepare(
@@ -147,6 +156,10 @@ async function saveCommentSettings(
 		{
 			key: COMMENT_BLOCKED_IPS_KEY,
 			value: settings.blockedIps ? settings.blockedIps.join(',') : undefined
+		},
+		{
+			key: COMMENT_BLOCKED_EMAILS_KEY,
+			value: settings.blockedEmails ? settings.blockedEmails.join(',') : undefined
 		}
 	];
 
@@ -206,6 +219,7 @@ app.get('/api/config/comments', async (c) => {
 			adminKey,
 			adminKeySet,
 			blockedIps,
+			blockedEmails,
 			...publicSettings
 		} = settings as any;
 
@@ -272,6 +286,7 @@ app.put('/admin/settings/comments', async (c) => {
 		const rawAdminKey = typeof body.adminKey === 'string' ? body.adminKey : undefined;
 		const rawRequireReview = body.requireReview;
 		const rawBlockedIps = Array.isArray(body.blockedIps) ? body.blockedIps : [];
+		const rawBlockedEmails = Array.isArray(body.blockedEmails) ? body.blockedEmails : [];
 
 		const adminEmail = rawAdminEmail.trim();
 		const adminBadge = rawAdminBadge.trim();
@@ -291,6 +306,9 @@ app.put('/admin/settings/comments', async (c) => {
 		const blockedIps = rawBlockedIps
 			.map((d: any) => (typeof d === 'string' ? d.trim() : ''))
 			.filter(Boolean);
+		const blockedEmails = rawBlockedEmails
+			.map((d: any) => (typeof d === 'string' ? d.trim() : ''))
+			.filter(Boolean);
 
 		if (adminEmail && !isValidEmail(adminEmail)) {
 			return c.json({ message: '邮箱格式不正确' }, 400);
@@ -304,7 +322,8 @@ app.put('/admin/settings/comments', async (c) => {
 			allowedDomains,
 			adminKey,
 			requireReview,
-			blockedIps
+			blockedIps,
+			blockedEmails
 		});
 
 		return c.json({ message: '保存成功' });
@@ -352,4 +371,47 @@ app.post('/admin/comments/block-ip', async (c) => {
 	}
 });
 
+app.post('/admin/comments/block-email', async (c) => {
+	try {
+		const body = await c.req.json();
+		const rawEmail = typeof body.email === 'string' ? body.email : '';
+		const email = rawEmail.trim();
+
+		if (!email) {
+			return c.json({ message: '邮箱不能为空' }, 400);
+		}
+
+		if (!isValidEmail(email)) {
+			return c.json({ message: '邮箱格式不正确' }, 400);
+		}
+
+		await c.env.CWD_DB.prepare(
+			'CREATE TABLE IF NOT EXISTS Settings (key TEXT PRIMARY KEY, value TEXT NOT NULL)'
+		).run();
+
+		const row = await c.env.CWD_DB.prepare('SELECT value FROM Settings WHERE key = ?')
+			.bind(COMMENT_BLOCKED_EMAILS_KEY)
+			.first<{ value: string }>();
+
+		const existing = row?.value || '';
+		const list = existing
+			? existing.split(',').map((d) => d.trim()).filter(Boolean)
+			: [];
+
+		if (!list.includes(email)) {
+			list.push(email);
+			const joined = list.join(',');
+			await c.env.CWD_DB.prepare(
+				'REPLACE INTO Settings (key, value) VALUES (?, ?)'
+			)
+				.bind(COMMENT_BLOCKED_EMAILS_KEY, joined)
+				.run();
+		}
+
+		return c.json({ message: '已加入邮箱黑名单' });
+	} catch (e: any) {
+		return c.json({ message: e.message || '操作失败' }, 500);
+	}
+});
+
 export default app;