Hi I want to see zhangye Danxia Landform if I go by train which station to go danxia landform

To ZY, trains are available from Xian and Lanzhou. If you mean the trains from ZY to Danxia Landform, there is no train and the pubilc buses are hard to get one. It is suggested to hire a local car or taxi for traveling.

The closest airport to ZY is the Lanzhou airport, so you need to fly to that place and then transfer trains to ZY.