A method and an apparatus for switching an input character in a WFD are disclosed. The method for switching an input character in a WFD comprises the steps of: transmitting, by a first WFD device, a character switch capability parameter to a second WFD device through a UIBC capability negotiation process with the second WFD device; transmitting, by the first WFD device, a first character switch establishment parameter to the second WFD device through a UIBC capability UIBC establishment process so as to establish the first character outputted onto each screen of the first WFD device and the second WFD device; transmitting, by the first WFD device, a key code for a character switch button through a UIBC to the second WFD device through a user input device of the first WFD device; and transmitting, by the first WFD device, a second character switch establishment parameter to the second WFD device through a UIBC re-establishment process so as to switch, to the second character, the first character outputted onto each screen of the first WFD device and the second WFD device.