I will be arriving at shenzhen bao'an airport this saturday, how do i get to hua qiang bei?

you can take bus NO:330 at terminal A with charge of RMB20/one person, shuttle bus will leave every10 or 15 mins, by bus from airport to HUAQIANBEI will take 45 mins on the way normally. you can get off bus at terminal station which can just walk few mins to HUAQIANBEI.
I'd like to suggest you do better to take metro from airport to HUAQIANBEI directly, rmb9/one person, more comfortable.

shuttle bus NO:330 at terminal A with charge of RMB20/person will leave every 10 or 15 mins then get off at terminal station in downtown where can just walk few mins to HUAQIANBEI.