Abstract: The falling of spare parts or debris of spacecrafts may cause personal injury and loss of property rights or interests of the third party in the territorial land, territorial seas and territorial airspace in a country. This act of tort should fall into civil tort, in which the damaged third party is the victim, while all the parties involved in the launch of the spacecraft are the responsible persons. The damage caused by the space launch activities should be applicable to highly hazardous liability. As to the liability principle, it should be strict liability.