diff --git a/extensions/telegram/src/token.test.ts b/extensions/telegram/src/token.test.ts
index c81e5d57b2c..74218f83ddd 100644
--- a/extensions/telegram/src/token.test.ts
+++ b/extensions/telegram/src/token.test.ts
@@ -188,6 +188,24 @@ describe("resolveTelegramToken", () => {
     expect(res.source).toBe("none");
   });
 
+  it("does not fall through to channel-level token when non-default accountId is not in config", () => {
+    vi.stubEnv("TELEGRAM_BOT_TOKEN", "");
+    const cfg = {
+      channels: {
+        telegram: {
+          botToken: "wrong-bot-token",
+          accounts: {
+            knownBot: { botToken: "known-bot-token" },
+          },
+        },
+      },
+    } as OpenClawConfig;
+
+    const res = resolveTelegramToken(cfg, { accountId: "unknownBot" });
+    expect(res.token).toBe("");
+    expect(res.source).toBe("none");
+  });
+
   it("throws when botToken is an unresolved SecretRef object", () => {
     const cfg = {
       channels: {
diff --git a/extensions/telegram/src/token.ts b/extensions/telegram/src/token.ts
index 6727e9a7ee4..87ee2a7e11b 100644
--- a/extensions/telegram/src/token.ts
+++ b/extensions/telegram/src/token.ts
@@ -44,6 +44,17 @@ export function resolveTelegramToken(
   const accountCfg = resolveAccountCfg(
     accountId !== DEFAULT_ACCOUNT_ID ? accountId : DEFAULT_ACCOUNT_ID,
   );
+
+  // When a non-default accountId is explicitly specified but not found in config,
+  // return empty immediately — do NOT fall through to channel-level defaults,
+  // which would silently route the message via the wrong bot's token.
+  if (accountId !== DEFAULT_ACCOUNT_ID && !accountCfg) {
+    opts.logMissingFile?.(
+      `channels.telegram.accounts: unknown accountId "${accountId}" — not found in config, refusing channel-level fallback`,
+    );
+    return { token: "", source: "none" };
+  }
+
   const accountTokenFile = accountCfg?.tokenFile?.trim();
   if (accountTokenFile) {
     const token = tryReadSecretFileSync(