Sun Jiadong is one of the pioneers and founders of China's aerospace science and technology industry. The protagonist has progressed and grown in the development of China's aerospace industry for more than 50 years. He has witnessed China's aerospace from scratch, from small to large, from weak to strong, and is a representative figure who opened a new chapter in China's satellite industry and opened a new era of space industry. He is still on the front line of aerospace engineering and talent training, and his legend continues. Taking Sun Jiadong's life experience as a clue, this book presents the arduous journey of China's aerospace industry and its brilliant achievements, as well as China's international status as a "big power weapon".