继承是指公民（自然人）死亡后，依法将其合法所有财产转归给他人所有的一项法律制度。我国继承法规定，继承从被继承人死亡时开始。有相互继承关系的当事人，在某次事件（如交通事故、地震等）中突然死亡，为了合理、合法地处理他们的遗产，必须先确定有相互继承关系的当事人 Inheritance refers to the legal system in which all the legal property owned by the citizens (natural persons) are handed over to others after the death of citizens (natural persons). China’s law on inheritance provides that inheritance begins when the deceased dies. Parties that have mutual inheritance relations suddenly die in a certain event (such as a traffic accident, earthquake, etc.). In order to handle their heritage legally and legally, it is necessary to determine the parties who have the mutual inheritance relationship