An apparatus and method for providing incoming and outgoing call information in a mobile communication terminal. A display unit displays detailed incoming/outgoing call information integrated for a particular phone number. A memory stores an incoming/outgoing call list according to an incoming/outgoing event. A controller controls an operation for adding the detailed incoming/outgoing call information to an associated phone number item of the incoming/outgoing call list when the incoming/outgoing call event occurs, and controls an operation for displaying the detailed incoming/outgoing call information integrated for the particular phone number selected from among phone numbers of the incoming/outgoing call list. The detailed incoming/outgoing call information mapped to the same phone number can be viewed at one time by integrating and providing the incoming/outgoing call information.