A method for setting a communication mode in a wireless terminal which can reduce the inefficiency due to frequent handover in a wireless terminal that performs a communication service through a GERAN/UTRAN network and a wireless network. The method for setting a communication mode in a wireless terminal that performs a multi-mode communication service through a GSM/EDGE radio access network (GERAN)/UTRAN network and a wireless network, includes checking for a predetermined time a movement frequency of the wireless terminal that performs the communication service as moving through the GERAN/UTRAN network and the wireless network, setting a communication mode of the wireless terminal through either of the GERAN/UTRAN network and the wireless network if the movement frequency of the wireless terminal is larger than a reference movement frequency, and performing the communication service in the set communication mode as moving through the GERAN/UTRAN network and the wireless network.