1986- 1989 studied in Tsinghua University and got a master's degree in laser physics.
199 1 year, Mr. Song Chaodi started from 600 yuan RMB and founded Kelihua Company.
199 1 year, the first generation of large-scale educational software in China-"CSC Principal Office System" was launched.
1994 launched "CSC Computer Tutor"
1997, CSC teachers' electronic lesson preparation system was launched, thus forming a complete three product series of schools, students and teachers, with a market share of over 60% in the field of educational software, which established Kelihua's leading position in this field.
1998 launched the "comprehensive solution for CSC campus network construction" and pioneered the concept of "software network construction". This solution has been adopted by many provinces and cities in China, which has brought a new situation to the domestic school information construction.
At the end of 1998, Song Chaodi planned the promotion activities of "learning revolution", which set a record of 100 days 100 books. The activity was rated as one of the top ten classic planning cases in China, which set off an upsurge of education and learning in China.
1999 Kelihua's "backdoor listing" was successful and became a classic of asset reorganization of private high-tech enterprises.