Egress and ingress early-warning method and device

The invention provides an egress and ingress early-warning method and device. Egress and ingress time of followers who get in and out of a residential area and target people followed by the followersare analyzed and whether to carry out early-warning or not is determined according to the total number of the followers corresponding to all target people with the same residential address information, so reliable early-warning is realized, and the condition that an illegal event exists due to the fact that a corresponding residual address is likely to be a pyramid selling den or a gathering den can be effectively prevented. 本申请提供一种出入预警方法及装置，通过对进出小区的尾随人员的进出时间及尾随人员所尾随的目标人员进行分析，以根据同一居住地址信息的所有目标人员对应的尾随人员的总量确定是否进行预警，实现了可靠预警，有效防止了对应居住地址可能为传销窝点或聚众窝点等而存在的违法事件。