The invention provides a tracking area updating device, system and method. The method includes the following steps that: first information is obtained through using user equipment adopted as a tracking area updating device, wherein the first information is used for determining waiting time; if it is determined that a tracking area updating process is required to be carried out, a processing module determines the waiting time according to the first information; and after waiting for the waiting time, the user equipment sends a tracking area updating request message to a core network device which is adopted as a tracking area updating device. With the tracking area updating device, system and method adopted, as for user equipment which moves at a high speed, for example, UE which communicates in a high-speed railway scene, each UE is configured to wait for a certain time, and thereafter, carry out a tracking area updating process, and therefore, signaling storm caused by a situation that a certain number of UE intensively trigger tracking area updating processes in a short time can be avoided, and network congestion can be avoided.