Xu Shidong, the history of the West Lake, was the cabinet book of the Qing Dynasty, "Six Zhis of the Four Mings, Songs and Yuans", and "Jixian Zhi" all took their hands, so it is the pride of the people of Ala Ningbo. This old house is located at the north end of Gongqing Road, adjacent to the Yinyue Lake Villa Hotel, and there is a statue of the master of history, the ancient ancestors, in front of the north gate of the house. Although it is called the former residence of Xu Shidong, because its main purpose is to be used as a library building, the door is left with the word "Yanyu Building", so there are two names in this, one "Yanyu Building", the other "Xu Shidong Former Residence".