Xu had one wife and four concubines. His wife Xia Hongjun (, also named Xia Xuan ()), died in Suzhou, Jiangsu Province, in 1955. They had four sons and two daughters. First son Hsu Shen-chiao ( Xu Shenjiao) and third son
Hsu Dau-lin (, Xu Daolin) were active in
Republic of China politics. Hsu Dau-lin wrote a biography, published in Chinese in 1962, entitled
The Life of General Hsu Shu-tseng. Older daughter Hsu Ying Li ( Xu Ying, also named Xu Yinghuan ()), wrote a biography of her mother and married the linguist
Fang-Kuei Li. The other three died in childhood. The four concubines were Shen Dinglan (), Shen Shupei (, younger sister of Shen Dinglan), Wang Huicheng () and Ping Fangchun (). Xu had two daughters (Xu Pei () and Xu Lan ()) with Shen Shupei, and two daughters (Xu Mei () and Xu Hui ()) with Wang Huicheng. == Awards and decorations ==