diff --git a/README.md b/README.md
index 205707e4052..10078d1d400 100644
--- a/README.md
+++ b/README.md
@@ -340,7 +340,7 @@ Details: [Security guide](https://docs.openclaw.ai/gateway/security) · [Docker
 ### [Telegram](https://docs.openclaw.ai/channels/telegram)
 
 - Set `TELEGRAM_BOT_TOKEN` or `channels.telegram.botToken` (env wins).
-- Optional: set `channels.telegram.groups` (with `channels.telegram.groups."*".requireMention`); when set, it is a group allowlist (include `"*"` to allow all). Also `channels.telegram.allowFrom` or `channels.telegram.webhookUrl` as needed.
+- Optional: set `channels.telegram.groups` (with `channels.telegram.groups."*".requireMention`); when set, it is a group allowlist (include `"*"` to allow all). Also `channels.telegram.allowFrom` or `channels.telegram.webhookUrl` + `channels.telegram.webhookSecret` as needed.
 
 ```json5
 {
diff --git a/docs/channels/grammy.md b/docs/channels/grammy.md
index 2deb19df20c..1b73394ef7e 100644
--- a/docs/channels/grammy.md
+++ b/docs/channels/grammy.md
@@ -18,7 +18,7 @@ title: grammY
 - **Single client path:** fetch-based implementation removed; grammY is now the sole Telegram client (send + gateway) with the grammY throttler enabled by default.
 - **Gateway:** `monitorTelegramProvider` builds a grammY `Bot`, wires mention/allowlist gating, media download via `getFile`/`download`, and delivers replies with `sendMessage/sendPhoto/sendVideo/sendAudio/sendDocument`. Supports long-poll or webhook via `webhookCallback`.
 - **Proxy:** optional `channels.telegram.proxy` uses `undici.ProxyAgent` through grammY’s `client.baseFetch`.
-- **Webhook support:** `webhook-set.ts` wraps `setWebhook/deleteWebhook`; `webhook.ts` hosts the callback with health + graceful shutdown. Gateway enables webhook mode when `channels.telegram.webhookUrl` is set (otherwise it long-polls).
+- **Webhook support:** `webhook-set.ts` wraps `setWebhook/deleteWebhook`; `webhook.ts` hosts the callback with health + graceful shutdown. Gateway enables webhook mode when `channels.telegram.webhookUrl` + `channels.telegram.webhookSecret` are set (otherwise it long-polls).
 - **Sessions:** direct chats collapse into the agent main session (`agent:<agentId>:<mainKey>`); groups use `agent:<agentId>:telegram:group:<chatId>`; replies route back to the same channel.
 - **Config knobs:** `channels.telegram.botToken`, `channels.telegram.dmPolicy`, `channels.telegram.groups` (allowlist + mention defaults), `channels.telegram.allowFrom`, `channels.telegram.groupAllowFrom`, `channels.telegram.groupPolicy`, `channels.telegram.mediaMaxMb`, `channels.telegram.linkPreview`, `channels.telegram.proxy`, `channels.telegram.webhookSecret`, `channels.telegram.webhookUrl`.
 - **Draft streaming:** optional `channels.telegram.streamMode` uses `sendMessageDraft` in private topic chats (Bot API 9.3+). This is separate from channel block streaming.
diff --git a/docs/channels/telegram.md b/docs/channels/telegram.md
index aa87eb85773..1d2fef69715 100644
--- a/docs/channels/telegram.md
+++ b/docs/channels/telegram.md
@@ -395,7 +395,7 @@ Most users want: `groupPolicy: "allowlist"` + `groupAllowFrom` + specific groups
 ## Long-polling vs webhook
 
 - Default: long-polling (no public URL required).
-- Webhook mode: set `channels.telegram.webhookUrl` (optionally `channels.telegram.webhookSecret` + `channels.telegram.webhookPath`).
+- Webhook mode: set `channels.telegram.webhookUrl` and `channels.telegram.webhookSecret` (optionally `channels.telegram.webhookPath`).
   - The local listener binds to `0.0.0.0:8787` and serves `POST /telegram-webhook` by default.
   - If your public URL is different, use a reverse proxy and point `channels.telegram.webhookUrl` at the public endpoint.
 
@@ -732,8 +732,8 @@ Provider options:
 - `channels.telegram.retry`: retry policy for outbound Telegram API calls (attempts, minDelayMs, maxDelayMs, jitter).
 - `channels.telegram.network.autoSelectFamily`: override Node autoSelectFamily (true=enable, false=disable). Defaults to disabled on Node 22 to avoid Happy Eyeballs timeouts.
 - `channels.telegram.proxy`: proxy URL for Bot API calls (SOCKS/HTTP).
-- `channels.telegram.webhookUrl`: enable webhook mode.
-- `channels.telegram.webhookSecret`: webhook secret (optional).
+- `channels.telegram.webhookUrl`: enable webhook mode (requires `channels.telegram.webhookSecret`).
+- `channels.telegram.webhookSecret`: webhook secret (required when webhookUrl is set).
 - `channels.telegram.webhookPath`: local webhook path (default `/telegram-webhook`).
 - `channels.telegram.actions.reactions`: gate Telegram tool reactions.
 - `channels.telegram.actions.sendMessage`: gate Telegram tool message sends.
diff --git a/docs/gateway/configuration.md b/docs/gateway/configuration.md
index 05bafc275a4..faf19a98c49 100644
--- a/docs/gateway/configuration.md
+++ b/docs/gateway/configuration.md
@@ -1091,7 +1091,7 @@ Set `channels.telegram.configWrites: false` to block Telegram-initiated config w
         autoSelectFamily: false,
       },
       proxy: "socks5://localhost:9050",
-      webhookUrl: "https://example.com/telegram-webhook",
+      webhookUrl: "https://example.com/telegram-webhook", // requires webhookSecret
       webhookSecret: "secret",
       webhookPath: "/telegram-webhook",
     },
diff --git a/src/config/telegram-webhook-secret.test.ts b/src/config/telegram-webhook-secret.test.ts
new file mode 100644
index 00000000000..dce093ae806
--- /dev/null
+++ b/src/config/telegram-webhook-secret.test.ts
@@ -0,0 +1,65 @@
+import { describe, expect, it } from "vitest";
+
+import { validateConfigObject } from "./config.js";
+
+describe("Telegram webhook config", () => {
+  it("accepts webhookUrl when webhookSecret is configured", () => {
+    const res = validateConfigObject({
+      channels: {
+        telegram: {
+          webhookUrl: "https://example.com/telegram-webhook",
+          webhookSecret: "secret",
+        },
+      },
+    });
+    expect(res.ok).toBe(true);
+  });
+
+  it("rejects webhookUrl without webhookSecret", () => {
+    const res = validateConfigObject({
+      channels: {
+        telegram: {
+          webhookUrl: "https://example.com/telegram-webhook",
+        },
+      },
+    });
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.issues[0]?.path).toBe("channels.telegram.webhookSecret");
+    }
+  });
+
+  it("accepts account webhookUrl when base webhookSecret is configured", () => {
+    const res = validateConfigObject({
+      channels: {
+        telegram: {
+          webhookSecret: "secret",
+          accounts: {
+            ops: {
+              webhookUrl: "https://example.com/telegram-webhook",
+            },
+          },
+        },
+      },
+    });
+    expect(res.ok).toBe(true);
+  });
+
+  it("rejects account webhookUrl without webhookSecret", () => {
+    const res = validateConfigObject({
+      channels: {
+        telegram: {
+          accounts: {
+            ops: {
+              webhookUrl: "https://example.com/telegram-webhook",
+            },
+          },
+        },
+      },
+    });
+    expect(res.ok).toBe(false);
+    if (!res.ok) {
+      expect(res.issues[0]?.path).toBe("channels.telegram.accounts.ops.webhookSecret");
+    }
+  });
+});
diff --git a/src/config/zod-schema.providers-core.ts b/src/config/zod-schema.providers-core.ts
index b852cdfd312..3d99a26fb7e 100644
--- a/src/config/zod-schema.providers-core.ts
+++ b/src/config/zod-schema.providers-core.ts
@@ -164,6 +164,43 @@ export const TelegramConfigSchema = TelegramAccountSchemaBase.extend({
       'channels.telegram.dmPolicy="open" requires channels.telegram.allowFrom to include "*"',
   });
   validateTelegramCustomCommands(value, ctx);
+
+  const baseWebhookUrl = typeof value.webhookUrl === "string" ? value.webhookUrl.trim() : "";
+  const baseWebhookSecret =
+    typeof value.webhookSecret === "string" ? value.webhookSecret.trim() : "";
+  if (baseWebhookUrl && !baseWebhookSecret) {
+    ctx.addIssue({
+      code: z.ZodIssueCode.custom,
+      message: "channels.telegram.webhookUrl requires channels.telegram.webhookSecret",
+      path: ["webhookSecret"],
+    });
+  }
+  if (!value.accounts) {
+    return;
+  }
+  for (const [accountId, account] of Object.entries(value.accounts)) {
+    if (!account) {
+      continue;
+    }
+    if (account.enabled === false) {
+      continue;
+    }
+    const accountWebhookUrl =
+      typeof account.webhookUrl === "string" ? account.webhookUrl.trim() : "";
+    if (!accountWebhookUrl) {
+      continue;
+    }
+    const accountSecret =
+      typeof account.webhookSecret === "string" ? account.webhookSecret.trim() : "";
+    if (!accountSecret && !baseWebhookSecret) {
+      ctx.addIssue({
+        code: z.ZodIssueCode.custom,
+        message:
+          "channels.telegram.accounts.*.webhookUrl requires channels.telegram.webhookSecret or channels.telegram.accounts.*.webhookSecret",
+        path: ["accounts", accountId, "webhookSecret"],
+      });
+    }
+  }
 });
 
 export const DiscordDmSchema = z