Smart terminal, processing method for phone numbers in system address book and apparatus

Disclosed in the invention are a smart terminal, a processing method for phone numbers in a system address book and an apparatus. The method includes the following steps: obtaining data information of phone numbers of a contact which has at least two phone numbers in the system address book of the smart terminal; according to the data information, determining a group number included in the phone numbers of the contact; judging if a corresponding phone number of an SIM card used in the smart terminal belongs to a short dialing number cluster network which includes the group number or not; and if yes, changing a default phone number of the contact into the group number which responds to a call instruction calling the contact, and calling the group number directly through the corresponding phone number of the SIM card. The processing method is capable of choosing the group number of the called user for a user automatically, and calling by directly using the group number as a called number. The method realizes simple, smart and user-friendly dialing in the calling process and reduces communication fees for both parties greatly.