An implementing method and system for terminal communication are disclosed, the method includes: a first visitor location register judging, according to an identifier of a first terminal which initiates a communication, whether the first terminal has registered first real name system information in a network, wherein, the first visitor location register is the location register which is currently visited by the first terminal, the communication is initiated by the first terminal to a second terminal, the first real name system information includes the identifier of the first terminal and subscriber identity information of the first terminal, and the subscriber identity information corresponds to the identifier of the first terminal; and in a case when the first visitor location register determines that the first terminal has not registered the first real name system information in the network, terminating the communication initiated by the first terminal.