China has launched the Yuanwang-, the new new generation of space tracking ship in Beijing.
It will perform maritime tracking of manned spaceflight Shenzhou, after a 60-day trial period.
The vessel marks a new high for China's space tracking technology, said an official statement.
The construction of the ship started on October 10, 2014. The 220 metre-long, 40 metre-high ship has a displacement of 25,000 tonnes, Xinhua news agency reported.
Capable of resisting strong typhoons, the ship can carry supplies to last for 100 days, the statement said.
Shenzhou-11 will carry two astronauts to dock with Tiangong-2, China's second orbiting space lab to be launched later this year. The docking is expected to allow two astronauts to live in space for up to 30 days.