Is there a fast train from shantou to guangzhou?

I think you mean Guangzhou, am I right? There are only several bullet trains that operated from Chaoyang Railway Station to Guangzhou South Railway Station. The schedules are 10:29, 11:20, 14:09, 17:43, 17:59 and 19:26. It takes around 3 hours on the way. The second class seat costs CNY156 and first class seat is CNY198.