A remote audio controlling system for providing remote audio controlling services over a network environment includes a web server (2), a database (1), a number of monitor computers (5), a number of cameras (60), and a number of audio information output apparatuses (62). The monitor computers, cameras and audio information output apparatuses link to the web server through a network (4). The web server includes a video data obtaining module (22) for obtaining video data from the cameras; an audio data receiving module (23) for receiving audio data from the monitor computers; and an audio data transmitting module (24) for transmitting the received audio data to the audio information output apparatuses. A related remote audio controlling method is also disclosed.