Shenzhou 6 was the second human spaceflight of the People's Republic of China, launched on October 12, 2005 on a Long March 2F rocket from the Jiuquan Satellite Launch Centre. The Shenzhou spacecraft carried a crew of Fei Junlong (费俊龙) and Nie Haisheng (聂海胜) for five days in low Earth orbit. It launched three days before the second anniversary of China's first human spaceflight, Shenzhou 5.

The crew were able to change out of their new lighter space suits, conduct scientific experiments, and enter the orbital module for the first time, giving them access to toilet facilities. The exact activities of the crew were kept secret but were thought by some to include military reconnaissance, however this is likely untrue given that similar experiments in the US and USSR determined that humans are not suited for military reconnaissance. It landed in the Sizwang Banner of Inner Mongolia on October 16, 2005, the same site as the previous manned and unmanned Shenzhou flights.