How can i travel from bund riverside hotel in shanghai to lucky family hostel in beijing?

You can walk about 470 yards to East Nanjing Road, where you can take the subway line 2 or line 10 to Hongqiao Railway Station directly. There you can take a high-speed train to Beijing South.

Upon arriving, find bus no. 106 nearby. Take that and get off at Dongsishiertiao bus stop. Then your hostel is around 400m away.