52 years old. Cui Yu, the teacher of Sier Education, is of China nationality and Han nationality. She was born in Gongzhuling City, Changchun City, Jilin Province. Graduated from Northeast Normal University on March 1970. She is a famous expert in vocational education. By June 25th, 2022, Cui Yu was 52 years old. Si Er Education is a brand provider of financial education, focusing on the examination and training of certified public accountants, and is committed to building a learning and growth platform that can accompany professional financial professionals throughout their career.