Provided are a method and apparatus, which analyze many aspects of log data generated in a mobile communication terminal, calculate changes in human relations based on opposite parties of communication, and provide information on human relations in a variety of ways. Specifically, first log data for a most recent first period and second log data for a second period are acquired, in which the second period is earlier than the first period. Amounts of the first and second log data for the first and second periods are calculated, respectively. The averages of the amounts of first and second log data are also calculated, respectively, and then compared with each other. The changes in human relations are determined based on opposite parties. Therefore, users can easily read the changes in human relations based on opposite parties of communication.