Abstract: The automated cycle storage system comprises:a plurality of cycles (CY), each having a fastening region (ZA) for temporarily storing it, an identification means (P1, P2) containing an identifier associated in a one-to-one way with said cycle and an antitheft device (AV) firmly attached to the cycle and designed so as to prevent the cycle from being stolen during temporary use of the cycle by a user, this antitheft device being actuable by means of a removable key (CL) containing at least part of the identification means (P1), and at least one storage station (ST) comprising a number of storage locations (EMP) each capable of removably housing a cycle, a number of controllable automatic cycle-locking/unlocking devices (CRH), each capable of engaging in said fastening region of a cycle, and read devices (LP1, LP2) capable of reading the identification means of the cycles housed in the storage locations.