How to get to mt.Jiuhuashan from chizhou railway station?

You can go to the local bus station in the west of the railway station, from where you can take a bus to Jiuhuashan. Here is my suggestion for your visit:
Day 1: Huacheng Temple - Corporeal Body Hall- Baisui Palace –Zhiyuan Temple- Jiuhua Stree;
Day 2: Fenghuangsong Scenic Area- Guanyin Peak – Daping Tingjing Stone – Tortoise Stone.

Oh, okay .. is it possible if i wany go to Tiantai Zhending Temple anf longevity hall ?

Yes, of course. Both of the places are near the Jiuhua Street and you can visit on the first day.