Any one can guide me from Beijing to Guangzhou by train. How many hours and fare is the journey ? Ty

If you take the G-trains, it takes about 8 to 10 hours and the ticket fare is around 862RMB for the second class seat and 1380RMB for the first class seat.
If you take the ordinary train, it takes about 21 to 30 hours and the fare is 426 to 456RMB for the hard sleeper.
For detail train information, I think you can find more in the Train Section on this website.