Embodiments of this application disclose a processing method of an abnormally behaving unmanned aerial vehicle, a network element, a system, and a storage medium, to detect a data packet for transmitting non-C2 data, and use a first network element to process the data packet for transmitting the non-C2 data. This prevents the data packet for transmitting the non-C2 data from being transmitted to a UAVC or a UAV. The UAVC can continue to control the UAV. This ensures transmission of C2 data and thus maintains control stability. The method includes: An SMF network element provides a first rule for a UPF network element, where the first rule indicates the UPF network element to detect, from a target transmission data packet, the data packet for transmitting the non-command and control C2 data, and the target transmission data packet is a data packet between the UAV and the UAVC; the SMF network element receives a first session report sent by the UPF network element; and the SMF network element sends an abnormal traffic report to the first network element based on the first session report.