This comes amid rising tensions in the region, after the United States deployed warships and a submarine in South Korea in the face of growing nuclear and missiles threats from North Korea.
Reports say the unnamed ship is China’s second aircraft carrier, after the Liaoning, and the first to be built domestically.
The carrier, which was transferred from dry dock into the water in the north-eastern port of Dalian, will deploy Shenyang J-15 fighter jets.
But the BBC quoted many military observers saying the new carrier is considered to be technologically inferior to the ten carriers used by the United States navy.
