diff --git a/change/@fluentui-react-timepicker-compat-preview-e27ebba5-b348-42a4-9883-fe63d2b03d92.json b/change/@fluentui-react-timepicker-compat-preview-e27ebba5-b348-42a4-9883-fe63d2b03d92.json
new file mode 100644
index 00000000000000..c205180c60d7fc
--- /dev/null
+++ b/change/@fluentui-react-timepicker-compat-preview-e27ebba5-b348-42a4-9883-fe63d2b03d92.json
@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "chore: add bundle size fixture.",
+  "packageName": "@fluentui/react-timepicker-compat-preview",
+  "email": "yuanboxue@microsoft.com",
+  "dependentChangeType": "none"
+}
diff --git a/packages/react-components/react-timepicker-compat-preview/bundle-size/TimePicker.fixture.js b/packages/react-components/react-timepicker-compat-preview/bundle-size/TimePicker.fixture.js
new file mode 100644
index 00000000000000..26943af23efa8b
--- /dev/null
+++ b/packages/react-components/react-timepicker-compat-preview/bundle-size/TimePicker.fixture.js
@@ -0,0 +1,7 @@
+import { TimePicker } from '@fluentui/react-timepicker-compat-preview';
+
+console.log(TimePicker);
+
+export default {
+  name: 'TimePicker',
+};
diff --git a/packages/react-components/react-timepicker-compat-preview/package.json b/packages/react-components/react-timepicker-compat-preview/package.json
index 274abeb1572ae8..9a0fba271a6346 100644
--- a/packages/react-components/react-timepicker-compat-preview/package.json
+++ b/packages/react-components/react-timepicker-compat-preview/package.json
@@ -13,6 +13,7 @@
   "license": "MIT",
   "scripts": {
     "build": "just-scripts build",
+    "bundle-size": "monosize measure",
     "clean": "just-scripts clean",
     "generate-api": "just-scripts generate-api",
     "lint": "just-scripts lint",