15 years old. According to the personal data of Bai Jingting and Sha Yi, Bai Jingting was born in 1993 and Sha Yi was born in 1978. The difference between them is1993-1978 = 15, and one year is one year, that is,15. Bai Jingting was born in Huairou District, Beijing. He is a film actor in China. Graduated from the Music School of Capital Normal University, majoring in recording.