A method for controlling a home automation system is disclosed, in which a PC for controlling web sites, electric home appliances, and communication between the web sites and the electric home appliances is provided. The method includes a step for trying to communicate with web sites or electric home appliances by using a predetermined program, a step for displaying a web page or a local page according to the communication try result; a step for displaying a corresponding web page or a local page according to the number of connected electric home appliances; and a step for controlling a corresponding appliance by inputting a controlling button of the displayed page.