The present invention provides an article delivery system using a delivery code and comprising: at least one locker comprising at least one storage unit provided with a locking device, a control unit for controlling the locking device, and a relay capable of transmitting/receiving the control signal of the control unit; a locker management server, which communicates with the locker(s) via the relay, issues a delivery code for individually opening the locker(s), and is provided with an application for receiving an article delivery request; and a first terminal, which sends a request for the issuance of the delivery code to the locker management server via the application and is delivered same, wherein a password for opening the locker(s) is generated if the locking device is closed after the article to be delivered is stored in the storage unit(s) upon unlocking the locking device by inputting the delivery code in the locker(s), the article delivery system preventing the leakage of personal information, automa