Fifty years old. According to the inquiry of personal resume, as of June 3, 2023, Li Yongle was born at the age of 501July, 972. Li Yongle, male, Ph.D., professor of Southwest Jiaotong University, doctoral supervisor, director of the Department of Bridge Engineering, winner of the National Outstanding Youth Fund, and a young and middle-aged innovation leader in the Ministry of Science and Technology.