Terminal and method for accessing terminal to network

The invention provides a method and a system for accessing a terminal to a network. The method comprises the following steps that: the terminal determines waiting time for the terminal to access the network again according to access time control information configured by a network side when receiving a rejection message or a link release message from the network side; the terminal determines access delay time of the terminal according to the waiting time; and the terminal initiates an access request to the network side when the waiting time of the terminal is equal to or exceeds the access delay time. By the method and the system, the problems that a core network entity is congested and rejects the requests of all the current machine type communication (MTC) terminals, and the congestion state is continuously kept certainly if the MTC terminals initiate access again simultaneously subsequently can be solved.