Two-dimensional code conference sign-in system

The utility model discloses a two-dimensional code conference sign-in system. Comprising a host control center used for creating conference information and issuing conference participation invitations; the mobile terminal is used for issuing and receiving the conference participation invitation and generating an entrance two-dimensional code; the two-dimensional code identifier is used for the participants to scan codes on site to register and enter; the cloud platform is used for data interaction and storage between system equipment; the channel all-in-one machine is used for controlling participants to go in and out of the meeting place; the two-dimensional code recognizer is used for recognizing entrance two-dimensional codes of participants; the display screen is used for displaying information and body temperature of participants; the infrared body temperature detector is used for monitoring the body temperature of the participants; the alarm is composed of a sound reminding device and a light reminding