Abstract: A method for automatically selecting a network and a terminal thereof are provided by the present invention. Wherein, the method includes: prestoring a MCC and MNC list with priority; the terminal acquiring network parameter information; determining that the terminal is located in multiple networks according to the network parameter information; the terminal preferentially requesting to access one network from the multiple networks according to the MNC and MCC list; and the terminal refusing to access some networks according to the MNC and MCC list. With the present invention, the terminal can select the network to access according to the priority of the operator.