Liu is the founder of Beijing Hanlin Education Technology Co., Ltd., commonly known as Mr. Digital. 20 16, deputy editor-in-chief of the overall plan for reviewing the whole middle school entrance examination, published Rain for Fools on 20 12, and won the first prize of the school's scientific research achievements in May of 20 14.

The teaching style is unique, humorous, listening to its lessons is like a spring breeze, and it is good at setting questions and raising points in the college entrance examination. It was once known as the god of mathematics in the college entrance examination. Rain on a Fool's Tree was published in 20 12, and won the first prize of the school's scientific research achievement in May of 20 14, and the excellent teacher award in September of the same year.

20 16 deputy editor of the general review plan for the first-line college entrance examination.

20 12 years, the average math score of the graduating class of college entrance examination 13 1.5, Tsinghua Peking University 14. In 2007, Qu Qiuying's college entrance examination ranged from 130 to 142, and in the same year, Liu Yicong 105 to 65438. In 2008, Li Siyao rose from 105 to130; 20 12, Yixiao Li rose from 1 10 to 65438; 20 13 years, Zhang Zi is about 120 to 65438.