Tugboats were seen in November dragging the carrier into harbour to test its electromagnetic aircraft launching catapults.
Military expert, David Axe, wrote in the Telegraph on Friday that Fujian is “almost ready for front-line service”.
He added: “Fujian is a big, sophisticated ship. But she’s not invulnerable. And if the United States and China ever go to war – say, over Taiwan – expect US and allied forces to make sinking Fujian a top priority.
“It’s obvious how they’d go after the giant ship. Two words: submarines and missiles.”
Mr Axe added that it is “no secret” that China intends to use the ship in the event of an invasion of Taiwan.
He said that Chinese forces have practiced sailing carriers “around Taiwan to the island’s east coast to pluck at the Taiwanese military’s weaker flank”.
Admiral Chris Grady, the vice chairman of the US Joint Chiefs of Staff was asked about the Fujian back in 2020.
He said: “Lot of blood, lot of loss of life, a lot of sweat and tears to make naval aviation work.
“We’ve got a huge lead and one that will continue to expand into the future. Go ahead and build that big ship, but to build the ecosystem that is naval aviation that brings that ship to life – that’s going to take a lot of hard work and time.”
China considers Taiwan a province of its republic, but Taiwan has sought to govern itself independently – stopping short of declaring independence to avoid conflict.
Chinese President Xi Jinping used his New Year address to warn that the country’s “reunification” with Taiwan is inevitable.
He said: “China will surely be reunified, and all Chinese on both sides of the Taiwan Strait should be bound by a common sense of purpose.
“All Chinese on both sides of the Taiwan Strait should be bound by a common sense of purpose and share in the glory of the rejuvenation of the Chinese nation.”
