The present invention provides a method for granting a visitor access into a premise. The security control method includes determining an identification tag, transmitting the identification tag to the visitor, scanning the identification tag of the visitor, authenticating the identification tag, generating an approving signal upon positive authentication of the identification tag, dispensing an identification token to the visitor upon receiving the approving signal, scanning the identification token of the visitor, and authenticating the identification token to grant the visitor access into the premise. The present invention further provides a security control system for the security control method.