A mobile communication terminal for providing a group picture of a group in a phonebook, a method of generating the group picture in the phonebook of the mobile communication terminal and a method of performing a communication event using the group picture are provided. The method of generating a group picture in a phonebook of a mobile communication terminal includes selecting an original picture in which an image corresponding to each member of a group is displayed in a predetermined area corresponding to the group member, mapping an address of each group member to the corresponding predetermined area in the original picture and storing the original picture to which the group members' addresses are mapped as a group picture of the phonebook. The present apparatus and method enable easier editing and use of a group of a phonebook and characteristic decoration thereof which allow for more efficient use of the mobile terminal.