I am stay in Novotel Bejing Peace - 3 Jinyu Hutong Wangfujing.

Which section do you wanna tour around?

Do you refer to Badaling Great Wall? If yes, from your hotel, walk northeast around 600 meters to get to Dengshikou Station. Take metro line 5 to Yonghegong Station and transfer to metro line 2 to Jishuitan Station, Exit B2. Walk east around 650 meters to Deshengmen Station. After arriving, take bus no.877 and get off at the station which is close to the pulley car lower station and about 10 minutes' walk to the entrance. Hope helpful!