Interactive method and system of two-dimension code information, client and server

The invention discloses an interactive method and an interactive system of two-dimension code information, a client and a server. The interactive method comprises the following steps of transmitting a request for generating a two-dimension code corresponding to a specific target to a server; obtaining the two-dimension code information returned from the server according to the request for generating the two-dimension code corresponding to the specific target, and popping a display window of the two-dimension code corresponding to the specific target so as to scan the two-dimension code through a mobile terminal to obtain the specific target; obtaining notification message for changing a unique identification corresponding to a using state of the two-dimension code returned from the server into a used state; removing the two-dimension code information in the display window according to the notification message. According to the technical solution, after the two-dimension code is scanned by the mobile terminal of a user, the two-dimension code information in the display window is removed, the user does not need to remove the two-dimension code information manually, and the operating mode of the two-dimension code is simplified.