How can I take shuttle bus from baiyun airport to beijing lu?

You can take line 5 and get off at Haizhu Square. Then Beijing Road wil be within 2km away. You can walk across the square and walk there within 20min.

Or take subway to get there. Take line 3 to Jiahewanggang and change to line 2. Get off at Gongyuanqian. Then Beijing Road will be around 600 yd away.