Maoer Hutong is located in the northwest of Dongcheng District of Beijing. It rises from Nangonggu Lane in the East and from Dianmen Street in the west. In Ming Dynasty, it was called Wenchang Palace of Zitong Temple and Maoer Hutong in Qing Dynasty. Wenchang Palace is a place where Wenchang Emperor is worshipped. Wenchang Emperor is Wenqu Star. It is a fairy in myth and legend who is in charge of Wenchang transportation.