diff --git a/change/@fluentui-react-file-type-icons-3e3148e6-21ff-4e59-9183-5797110af256.json b/change/@fluentui-react-file-type-icons-3e3148e6-21ff-4e59-9183-5797110af256.json
new file mode 100644
index 0000000000000..f43b1fc57936b
--- /dev/null
+++ b/change/@fluentui-react-file-type-icons-3e3148e6-21ff-4e59-9183-5797110af256.json
@@ -0,0 +1,7 @@
+{
+  "type": "minor",
+  "comment": "add support for wbtx file",
+  "packageName": "@fluentui/react-file-type-icons",
+  "email": "51342814+jieleiwang@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/react-file-type-icons/src/FileTypeIconMap.ts b/packages/react-file-type-icons/src/FileTypeIconMap.ts
index e36c5dafe9a8f..456db68a287f1 100644
--- a/packages/react-file-type-icons/src/FileTypeIconMap.ts
+++ b/packages/react-file-type-icons/src/FileTypeIconMap.ts
@@ -538,7 +538,7 @@ export const FileTypeIconMap: { [key: string]: { extensions?: string[] } } = {
     extensions: ['vst', 'vstm', 'vstx', 'vsx'],
   },
   whiteboard: {
-    extensions: ['whiteboard'],
+    extensions: ['whiteboard', 'wbtx'],
   },
   xlsx: {
     extensions: ['xlc', 'xls', 'xlsb', 'xlsm', 'xlsx', 'xlw'],