China's scientific research ship, the Tansuo-2, carrying the deep-sea crewed submersible Shenhai Yongshi (Deep Sea Warrior), returned to port after completing its maritime task in the South China Sea, marking the successful completion of its first leg of the 2022 deep-sea in-situ scientific experiment station. Through this maritime task, the underwater performance and long-term operation reliability of the system and equipment are proved.