how to take taxi from HK airport to shenzhen

At the Taxi Station by the left-hand ramp outside the Arrivals Hall of HKIA, hope you can luckily find a taxi to HK-Shenzhen Border. They may charge CNY700-800 for your reference! Then you need to pass the border to reach Shenzhen.

Actually, there are many direct buses from HKIA to Shenzhen proper area for your choice. It is much more convenient and economical.