diff --git a/extensions/msteams/src/channel.ts b/extensions/msteams/src/channel.ts
index 730d425f9a0..17c73cf1e61 100644
--- a/extensions/msteams/src/channel.ts
+++ b/extensions/msteams/src/channel.ts
@@ -31,6 +31,7 @@ import {
   resolveMSTeamsUserAllowlist,
 } from "./resolve-allowlist.js";
 import { getMSTeamsRuntime } from "./runtime.js";
+import { resolveMSTeamsOutboundSessionRoute } from "./session-route.js";
 import { msteamsSetupAdapter } from "./setup-core.js";
 import { msteamsSetupWizard } from "./setup-surface.js";
 import { resolveMSTeamsCredentials } from "./token.js";
@@ -181,6 +182,7 @@ export const msteamsPlugin: ChannelPlugin<ResolvedMSTeamsAccount> = {
   setup: msteamsSetupAdapter,
   messaging: {
     normalizeTarget: normalizeMSTeamsMessagingTarget,
+    resolveOutboundSessionRoute: (params) => resolveMSTeamsOutboundSessionRoute(params),
     targetResolver: {
       looksLikeId: (raw) => {
         const trimmed = raw.trim();
diff --git a/extensions/msteams/src/session-route.ts b/extensions/msteams/src/session-route.ts
new file mode 100644
index 00000000000..95f778b0249
--- /dev/null
+++ b/extensions/msteams/src/session-route.ts
@@ -0,0 +1,39 @@
+import {
+  buildChannelOutboundSessionRoute,
+  stripChannelTargetPrefix,
+  stripTargetKindPrefix,
+  type ChannelOutboundSessionRouteParams,
+} from "openclaw/plugin-sdk/core";
+
+export function resolveMSTeamsOutboundSessionRoute(params: ChannelOutboundSessionRouteParams) {
+  let trimmed = stripChannelTargetPrefix(params.target, "msteams", "teams");
+  if (!trimmed) {
+    return null;
+  }
+
+  const lower = trimmed.toLowerCase();
+  const isUser = lower.startsWith("user:");
+  const rawId = stripTargetKindPrefix(trimmed);
+  if (!rawId) {
+    return null;
+  }
+  const conversationId = rawId.split(";")[0] ?? rawId;
+  const isChannel = !isUser && /@thread\.tacv2/i.test(conversationId);
+  return buildChannelOutboundSessionRoute({
+    cfg: params.cfg,
+    agentId: params.agentId,
+    channel: "msteams",
+    accountId: params.accountId,
+    peer: {
+      kind: isUser ? "direct" : isChannel ? "channel" : "group",
+      id: conversationId,
+    },
+    chatType: isUser ? "direct" : isChannel ? "channel" : "group",
+    from: isUser
+      ? `msteams:${conversationId}`
+      : isChannel
+        ? `msteams:channel:${conversationId}`
+        : `msteams:group:${conversationId}`,
+    to: isUser ? `user:${conversationId}` : `conversation:${conversationId}`,
+  });
+}