执行通知书是人民法院的执行机构在法定期间内向被执行人发出的、要求被执行人在指定期间内履行生效法律文书确定其应履行的法定义务、逾期将承担强制执行后果的一种告示文书。其特征是：第一，时间的特定性。这包含两个方面的内容：首先是发出时间的特定性，其次是要求被执行 The enforcement notice is issued by the executing agency of the people’s court to the enforcer within the statutory time limit and requires the enforcer to fulfill the statutory obligations that the implementing legal instrument should fulfill within a specified period of time and a notifying instrument which will bear the enforcement consequences overdue . Its characteristics are: First, the specificity of time. This includes two aspects: the first is the particularity of the time, followed by the requirement to be executed