Disclosed are a system and a method capable of pricing/billing a relay commission for a delivery order in a delivery order relay system which relays delivery orders, requested by users by phone call, to a store. One aspect of the present invention provides a system for billing relay of an order call, for billing a relay commission regarding an order through phone call, comprising: an order success determination module for determining whether a phone order placed by phone call is successfully received when the phone call is connected from a user terminal to a target store; and a billing module for billing a relay commission regarding the phone order to the target store when it is determined that the phone order is successfully received.