A method for listening to an on-line radio station through a webphone comprises the following steps: a CPU continues detecting a webphone system whether there is an incoming phone call or a dialing-out phone call; if yes, allows the system to close a broadcasting mode of an on-line radio station and to activate general dialing/receiving mode of a webphone; if no, allows the system to activate the broadcasting mode of the on-line radio station; the CPU allows the system to execute the broadcasting mode. The present invention provides a webphone having a broadcasting function of an on-line radio station while standing by. Therefore, a webphone can have more functions and use values.