Identity authentication and card issuing all-in-one machine and working method thereof

The invention discloses an identity authentication and card issuing all-in-one machine and a working method thereof; the all-in-one machine comprises a camera, an embedded touch control all-in-one machine, an identity card reading module and an RFID card writing module; and the camera, the identity card reading module and the RFID card writing module are respectively connected with the embedded touch control all-in-one machine through serial ports. The working process comprises the steps that 1, a visitor reads identity card information through the identity card reading module; 2, the visitorobtains a visitor front face picture through the camera, and face comparison is carried out on the visitor front face picture and the read picture on the identity card through a face comparison algorithm; 3, the visitor inputs visiting information on an interface of an embedded touch all-in-one machine; 4, the identity authentication and card issuing all-in-one machine writes time-limited authority into a temporary access