近年来,美国太空探索技术公司尝试利用猎鹰-9火箭进行回收试验。2015年进行了三次,其中,两次在海上,但均没有成功;一次在陆地上获得了成功。2016年新年伊始,又在海上进行了一次尝试,但没有成功。介绍了运载火箭回收探索的发展历程,分析了运载火箭回收的关键技术,并讨论了此项研究的重要性和意义。 In recent years, NASA has been experimenting with Falcon-9 rockets for recycling experiments. Three were conducted in 2015, two of which were at sea but none of them succeeded; one was successful on land. At the beginning of the new year in 2016, another attempt was made at sea but without success. The development history of recovery of carrier rocket is introduced, the key technologies of recovery of carrier rocket are analyzed, and the importance and significance of this research are discussed.