Identity card recognition device for construction site

The utility model discloses an identity card recognition device for a construction site, which comprises a card reader, a mounting plate is arranged on the rear side of the card reader, supporting legs are fixedly connected to the bottom of the mounting plate, a mounting groove matched with the card reader is formed in the front side of the mounting plate, a first permanent magnet is fixedly connected to the front side of the mounting plate, and a second permanent magnet is fixedly connected to the rear side of the mounting plate. According to the identity card recognition device for the construction site, the first permanent magnet is utilized to attract the second permanent magnet, so that the position of the protection sheet is difficult to move, and through the arrangement of the protection sheet, when the device is not used, a card reader mounted in the mounting groove of the mounting plate is protected; the influence of dust on the card reader is greatly reduced, when the card reader is used, only a han