Abstract: The present invention relates to a parking lot reservation method and a system therefor. The present invention is performed by a parking lot reservation server and comprises the steps of: receiving a parking lot information request from a subscriber terminal; providing one or more pieces of parking lot information to the subscriber terminal in response to the parking lot information request; performing a reservation procedure by receiving parking lot information of a parking lot selected by the reservation terminal among the one or more parking lots and a parking lot reservation request of the subscriber terminal; and obtaining location information of the subscriber terminal before pre-configured time from the reservation time when a parking lot reservation is completed, to provide the location information to an operator terminal of a reserved parking lot.