Li Xintong's father is Han nationality, and Li Xintong's mother is a descendant of Mongolian and Kazak, both from China.

Li Xintong is a resident opera singer at the National Centre for the Performing Arts, a bachelor of vocal performance from the Central Conservatory of Music, a soprano at the National Centre for the Performing Arts, and a master of vocal education from the New England Conservatory of Music.