Answered by Leo | Oct. 07, 2015 02:01
There is no direct high speed train between the two cities. You need to make a transfer at Shenzhen.
Guangzhou to Shenzhen: There are about 170 departures per day. Duration is about 1.5 hours and ticket fare is CNY 79.5 for a second class ticket.
Shenzhe to QZ: There are about 20 departures per day. Duration is about 4 hours and ticket fare is CNY 171.5 for a second class seat.
For departure and arrival stations, you can search on this website on your own, as ther are more than one of them in both Guangzhou and Shenzhen.
BTW, there are direct long-distance buses between the two cities; but it takes about 11 hours on the way.