The invention provides an identity 
verification method of a 
mobile phone number of a communication terminal. The identity 
verification method comprises: a step 1, after obtaining the 
mobile phone number of the communication terminal requiring identity 
verification, a 
server notifies a 
client of an intelligent terminal to monitor all incoming call numbers within an 
effective time and send the monitored telephone numbers to the 
server; a step 2, the 
server starts a pre-selected target 
telephone number by an external call center to call the 
mobile phone number of the communication terminal; and a step 3, the 
client sends the telephone numbers monitored within the 
effective time to the server, the server compares the telephone numbers to judge whether the 
client of the intelligent terminal monitors the call of the target 
telephone number within the 
effective time, if judges that the client monitors the call of the target 
telephone number, confirms the mobile phone number of the communication terminal as the telephone number of the intelligent terminal, and the client hangs up the call and notifies the server that the identity verification corresponding to the mobile phone number is passed. According to the method provided by the invention, a 
communication device can complete the identity verification of the mobile phone number without receiving or inputting a verification code, in this way, the operation efficiency is further improved, and the possibility of manual wrong operations is reduced.