Disclosed is a method for processing conversation information in a wireless terminal. The method includes registering information about a push-to-talk (PTT) conversation service subscriber currently performing push-to-talk conversation when a key for storing push-to-talk conversation data is input during execution of a push-to-talk conversation service, and storing push-to-talk conversation data of a subscriber of the push-to-talk wireless terminal and push-to-talk conversation data corresponding to the registered information about the push-to-talk conversation service subscriber when the push-to-talk conversation data are received. Accordingly, while PTT conversation service is being provided, PTT conversation data are stored, reproduced and then recognized, thereby ensuring reliability for a PTT conversation service which may be used only once. In addition, the stored PTT conversation data can be backed up using an e-mail or an MMS message, and PTT conversation data stored during the provision of the PTT conversation service can be transmitted to the counterpart of the PTT conversation, thereby preventing a repeated request for important information data such as conference-call due to the loss of the data using a document or a telephone.