A data interaction method, a verification terminal, a server, and a system are described. The method includes: receiving, by a verification terminal, identity verification information from a user terminal, the identity verification information being information sent to the user terminal by a server in advance; sending, by the verification terminal, a request instruction to the server, the request instruction including the identity verification information; executing, by the server, an operation corresponding to the request instruction; and sending, by the server, feedback information to the verification terminal.