Yuan Longping (1913 - 2011) was known as the "father of hybrid rice" in China. His main achievements and contributions included: 1. hybrid rice: Yuan Longping led a team to invent hybrid rice technology in the 1960s. Through repeated crossbreeding, he successfully developed a number of high-yield and high-quality hybrid rice varieties, greatly increasing China's grain production, solving China's grain shortage problem, and making great contributions to national food security. 2. Insist on breeding: Yuan Longping persisted in breeding all his life and devoted himself to researching high-yield and high-quality rice varieties, which promoted the continuous development of China's rice breeding industry. Honorary achievements: Yuan Longping has won many honors and awards at home and abroad, including the World Food Prize and the foreign academician of the National Academy of Engineering. 4. Promotion: Yuan Longping has always been committed to promoting hybrid rice technology to help farmers in poor areas increase food production and improve living conditions. He has also contributed to the world's food security. Yuan Longping was an outstanding representative of China's agricultural field. His hybrid rice technology and application had made important contributions to China and the world's food security, as well as to the global food security cause.