How do we get from hong kong airport to choi hung mtr?

Take Airport Express line to Tsing Yi Station, and change to Tung Chung Ling to Lai King Station. Then, transfer to Tsuen Wan Line to Prince Edward Station. Afterwards, change to Kwun Tong Line to Choi Hung Station.

Or, you may take bus line A22 from HKIA to Ping Shek Estate Station. Then, walk north for about 300 yards to Choi Hung Station. :)