刚刚无聊写信去问 不到半小时对方就回复了 效率很高！ 结论：的确没得托运 而行李请自行从中部国际机场机场寄到饭店。
对方原文回复如下：
Dear Customer,
Thank you very much for your interest in Willer Travel.
<Regarding luggage>
Unfortunately, for the bus from Chubu International Airport to Takayama, luggage check-in is NOT available.
Therefore, from the airport, please send your luggage by delivery services directly to your hotel.
<Regarding bus operating company>
Chubu-Takayama route is operated by bus company Meitetsu Tobu Bus (名鉄飞ぶバス）.At the boarding location, please locate the bus operated by Meitetsu Tobu Bus.
It isOT Willer Express bus.
Regards,
Willer Travel Customer Center