1) Holiday Inn Chang An West Beijing (4 star): 15 minutes walking distance to IHEP. Address: 66 Yongding Road, Haidian District, Beijing 100049 Tel: +86-10-6813 2299 Fax: +86-10-8821 3327. Rooms at special rates for the conference: Standard room is about RMB 550/night (including one free breakfast). If you want to book a room in Holiday Inn, please click here
Currently 30 rooms are reserved, but if there are more requests, more rooms with special rates are negotiable.
You can chose a hotel along subway line #1, e.g, some places near XiDan Station, it'll take 30 mins (subway + walking time). You can search the hotels in booking.com by put "XiDan Station, Beijing, China" in the search bar.