Access having iris recognition function, server and system

The invention discloses an access having an iris recognition function. The access comprises an image acquisition unit which can be used for shooting outdoor images or videos, a memory unit which is used for storing an iris registration template of at least one registered user and associated user identity information, a communication unit which is used for being accessed into a wireless network and is subsequently connected with a server, and an access and iris recognition control unit which is used for controlling the image acquisition unit to shoot iris images of an outdoor person in an iris recognition mode, wherein the access and iris recognition control unit is also used for responding a certified outdoor person as a registered user and transmitting an iris recognition successful message containing the user identity information to the server by virtue of the communication unit. The invention further provides a corresponding server and a corresponding system.