Hotel self check-in-based self check-in terminal

The invention discloses a hotel self check-in-based self check-in terminal. The terminal comprises a wireless network connection module, an audio data receiving unit, a storage unit, a card issuance module and a processor which is connected with the wireless network connection module, the audio data receiving unit, the storage unit and the card issuance module; the storage unit stores a set of program codes; the processor is used for calling the program codes stored in the storage unit; audio data are converted from specific data segments by a mobile terminal; and the specific data segments are synthesized from first random data sent by a server, the terminal number of the mobile terminal, and second random data generated by the mobile terminal through the mobile terminal. According to theuse method of the hotel self check-in-based server of the invention, hotel occupancy reservation can be performed remotely; and the first random data and the second random data are set, so that a condition that other users obtain data with ill intentions and get room cards can be avoided, and high confidentiality can be realized.