Where to catch the bus to Zhujiajiao from Shangrila Pudong Shanghai?

There is no direct bus or subway for you to take. You need to transfer.
Walk to Lujiazui Station and take subway line 2 to Century Avenue Station. Then transfer to subway line 9 to Dongjing Station, Exit 3.
After that, you can take bus no. Song Zhu Special Line to Zhujiajiao Vocational School Station. Then walk north around 850 yards to arrive at the destination.