A method for setting a product address in a home network system is disclosed. The method includes a step for requesting a temporary address in which a network controller designates redundant addresses with a predetermined range to each product and requests an arbitrary address among the redundant address as a temporary address; a step for designating a temporary address in which each product designates an arbitrary address among the redundant addresses as a temporary address and informs to a network controller; and a step for confirming an address in which the network controller sequentially sets one of the redundant addresses for each address not doubled among informed temporary addresses from each product.