Everything we know about China’s mysterious, futuristic Nantianmen Project

South China Morning Post · Feb 17, 2026 · Collected from RSS

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China’s Nantianmen Project – translated as Southern Celestial Gate – has captured widespread attention as a blend of science fiction storytelling and hi-tech military speculation.Launched in 2017 by a subsidiary of the state-owned Aviation Industry Corporation of China (Avic), the project originated as an aviation-themed sci-fi intellectual property (IP) rather than an active weapons development programme.At its core, the project serves as a creative vehicle to showcase more than 100 futuristic weapon concepts, from massive strategic aerospace carriers to hypersonic fighters and tactical robotic swarms.What sets the project apart is its high-profile real-world presence, with full-scale mock-ups of its futuristic platforms appearing at China’s air shows in recent years.This blurring of fiction and reality has fuelled speculation about whether it is a symbolic preview of China’s ambitions in integrated air-space dominance amid competition with the US.The plotOn its surface, the Nantianmen Project is a science fiction story which adopts the standard trope of humanity defending Earth from alien invasion. A novel of the same title was published in 2022, but development is said to have started in 2017.