Give me please information about the transport from Guilin to Huaihua (train, bus )

You can take either train or long-distance bus to Huaihua from Guilin.
By train: There is only one train in operation from Guilin to Huaihua: K651/K654. It departs from Guilin North Railway Station at 12:38 and from Guilin Railway Station at 12:58. The whole journay takes about 11.5 h.
By bus: You can take a long-distance bus at Guilin Bus Station. One bus is in service each day, departing at 14:00 and the ticket fare is CNY 98 per person.
If you would miss the train or the bus, I advise you take a train to Changsha first. Then you can transfer to a train to Huaihua easily.