Need route from Hotel Jen (2 Dongsihuan Beilu Chaoyang, Beijing) to Olympic Village(Bird Cage)

Well, do you refer to the Bird Nest? If yes, you can take public bus no.740 (Outer Ring) at North Dongfengqiao Station, and get off at Olympic Village. After arriving, walk northwest around 0.7 miles (1.2km) to find the destination.
Or you can take a taxi from your hotel directly. The cab fare is about CNY 30 in the day time.