Abstract: Based on the review of extraterrestrial object sampling and sealing technologies, this paper elaborates adaptive design of extraterrestrial objects’ characteristics, sampling method, and sealing container. Then, sealing technology characteristics and leakage rate are analyzed respectively. Meanwhile, key issues during the sealing process, such as dustproof design and biological sterilization, are carefully researched. Finally, the prospects for the research and technology issues needed to be resolved are also analyzed, providing a reference for the development of extraterrestrial object sampling and sealing technology in China.