how much rmb while going to dalian by train from kashgar

There is no direct train service between the two places. It is too far between, so it will take too much time on train (also you need to transfer on the way). To avoid that, you can take a train from Kashgar to Urumqi first and then fly to DL. I remember the train ticket for a hard seat from Kashgar to Urumqi is CNY76.5-189.5 and the sleeper fare shall be CNY197.5-343.5. For the train schedule and plane fare, you can search at the train and flight pages at this website.