Hi, is there any free shuttle bus to Prince Marco Polo hotel in HK? The K2 station is far from arrival ?

For the free shuttle bus service, do u mean the free buses from the airport to the hotel directly?
If so, there is such kind of free bus.
If you want to take K2, you need to take the airport express line to reach Kowloon Station and then change to bus K2 to your hotel.