China has unveiled a lifelike underwater robot designed to move through water like a real fish, offering a glimpse into the country’s expanding work on biomimetic robotics. Called the BG-5 Golden Dragon Fish, the compact machine was demonstrated at the 2026 China International Fair for Trade in Services (CIFTIS) at Beijing’s Shougang Park. The robot has been developed by Boyagongdao Marine Technology Group and takes its design inspiration from the golden arowana.
Unlike a conventional underwater drone that uses a propeller, the BG-5 pushes itself through the water with a flexible, multi-joint tail. The movement is intended to mimic the undulating motion of a swimming fish.
