As the deputy commander of TT&C communication system of China's manned spaceflight project and the head of TT&C department of China Satellite, Jian Shilong participated in the launch of intercontinental missiles and submarine missiles in China, as well as the launch of various communication satellites, meteorological satellites and navigation satellites at home and abroad. Command the Roy survey fleet to successfully complete the shenzhou spaceship TT&C communication mission five times in Sanyo's scheduled sea area.