The invention provides an incoming call screen display method, comprising: receiving an incoming call signal including a caller number, caller information, and ring type information when an incoming telephone call is received, and generating, based on the received incoming call signal, a caller information image including at least a portion of the caller information included in the incoming call signal as character information; generating caller text information based on at least one of the caller information and the ring type information; registering the caller number, the caller text information, and the caller information image in a telephone dictionary managed in the portable terminal device; acquiring the registered caller text information and the caller information image corresponding to the caller number from the telephone dictionary; and displaying an incoming call screen including the caller text information and the caller information image.