As of July 6, 2021, Big S’s first husband is Wang Xiaofei.

On November 16, 2010, Xu Xiyuan and Wang Xiaofei registered their marriage at the Civil Affairs Bureau of Chaoyang District, Beijing. On the afternoon of March 22, 2011, Xu Xiyuan and Wang Xiaofei held their wedding in Sanya, Hainan.

At 23:00 on the evening of April 11, Xu Xiyuan reopened Weibo after five months. In October, Xu Xiyuan and Wang Xiaofei returned to Taiwan to celebrate their 35th birthdays. After getting married, Xu Xiyuan suspended her acting career after filming the movie "Da Wu Sheng".

Big S’s married life:

On the evening of December 2, 2013, Xu Xiyuan announced her pregnancy on Weibo. On April 2, 2014, 37-year-old Xu Xiyuan became pregnant with "Little Ma Niu" for Wang Xiaofei and is expected to give birth at the end of April.

At 3:30 pm on April 24, Xu Xiyuan successfully delivered a 6-pound baby girl by caesarean section, and revealed in a media statement that her daughter "is a beautiful long-legged girl." On May 7, Xu Xiyuan He revealed on Weibo that his daughter’s name is Wang Xiya.

On May 24, Xu Xiyuan and her mother-in-law Zhang Lan and their family held a full moon banquet for their daughter Wang Xiyue in Taipei 101. On August 3, Wang Xiaofei held a 100-day banquet for her daughter in Beijing. Parents of both parties attended? In October, Wang Xiaofei showed off photos of her daughter on Weibo.