On the afternoon of September 27, 2008, Chinese astronaut Zhai Zhigang successfully completed his spacewalk mission, which marked that China’s manned spaceflight industry has entered a new historical stage. This historic event, It will be forever recorded in the annals of China’s aerospace history. Spacewalk is my country's first attempt in the field of aerospace science and technology. The astronauts led by Zhai Zhigang have taken practical actions to implement the famous saying of Neil Armstrong, the first human being to land on the moon. "A small step for a man is a giant step for mankind." The first step left Chinese footprints in the vast space.