The invention discloses a large machine room database inspection device. The large machine room database inspection device comprises a movable guide rail, the section of the movable guide rail is I-shaped, the movable guide rail is fixedly installed at the top of a machine room, an inspection robot is fixedly installed on the movable guide rail, the inspection robot comprises an installation framewhich comprises two-layers installation platforms, a guide mechanism, a driving mechanism and a braking mechanism are sequentially fixedly installed on an installing rack upper-layer installing platform along the moving guide rail, a lifting mechanism and a power supply are fixedly installed on an installing rack lower-layer installing platform, an inspection mechanism is fixedly installed at thebottom of the lifting mechanism, and a control box is fixedly installed on the installing rack upper-layer installing platform. According to the large machine room database inspection device, the inspection robot is remotely controlled to move along the moving guide rail to inspect the machine room equipment, the RFID label information of the machine room equipment is read through a RFID reader,then data is transmitted to the database to be stored, the equipment of the machine room can be inspected conveniently and efficiently, the inspection workload of inspection personnel can be greatly reduced, and therefore, the human input is effectively saved.